Overview of Salicaceae
The Salicaceae family, also known as willow and poplar family, is a group of deciduous trees and shrubs consisting of over 55 genera and 1200 species. It is one of the larger families within the order Malpighiales. The family is well-known for its diverse species and their broad ecological and morphological characteristics.
Taxonomy and Classification
The classification of Salicaceae is based on several taxonomic studies using molecular and morphological data. The family comprises two subfamilies; Salicoideae and Flacourtioideae. Salicoideae is further grouped into eight tribes, and Flacourtioideae contains only one tribe.
Genus Populus, Salix, and Chosenia belong to the Salicoideae subfamily, while Casearia and Flacourtia are the only two genera in Flacourtioideae.
Unique Characteristics
One unique characteristic of the Salicaceae family is the presence of catkins or aments. These are inflorescences that contain either male or female flowers. The catkins are typically long and pendulous and appear before the leaves in the spring. In the autumn, they develop into structures that disperse seeds through wind or water currents.
Another feature that distinguishes Salicaceae is the extensive hybridization among species. Hybridization contributes significantly to the diversity of the family. The most well-known hybrid is Populus x canescens, which is a cross between Populus alba and P. tremula. This hybrid demonstrates the characteristics of both parents, including the white bark of the P. alba and the trembling leaves of P. tremula. Additionally, the hybrid is resistant to many diseases and pests that target either parent species.
In terms of usage, many species in Salicaceae possess medicinal properties. For example, the bark of species such as Salix alba, which has been used for centuries for its anti-inflammatory, antipyretic, and analgesic properties. Poplar has also been used in traditional medicine to treat a variety of ailments like pain, fever, and malaria.
Distribution of the Salicaceae Family
The Salicaceae family, also known as the willow family, is distributed worldwide, with members found on every continent except Antarctica. The family includes about 53 genera and 1100-1200 species of deciduous trees and shrubs. Some of the most widespread genera are Salix, Populus, and Chosenia.
The Salicaceae family is commonly found in temperate regions, but some species have adapted to extreme conditions in the Arctic and Alpine tundra. Depending on the species, some members of the family are found in forests, riparian zones, swamps, or on sand dunes and rocky slopes.
Habitat Preferences of the Salicaceae Family
Willows, poplars, and other members of the Salicaceae family are adaptable to varying habitats, but they are most commonly found in moist areas such as riverbanks and wetlands. The family members are known for their tolerance to periodic flooding and waterlogged soils.
Some species of the Salicaceae family grow in drier habitats such as rocky outcrops, sand dunes, and open meadows. Some willows grow in harsh environments such as the Arctic tundra and have adapted to withstand extremely cold temperatures and harsh winters.
Many species of the Salicaceae family grow in forests and woodlands, with some serving as pioneer species that colonize disturbed areas and facilitate the growth of other plant species.
Ecological Adaptations of the Salicaceae Family
Members of the Salicaceae family exhibit various ecological preferences and adaptations that allow them to thrive in their habitats. Some species of willows and poplars have developed deep roots that help them access groundwater during droughts and floods.
Many Salicaceae species carry out asexual reproduction through rhizomes, enabling them to form dense clones that are genetically identical. This adaptation allows them to cover large areas and compete against other plant species.
Salicaceae species are known for their high biomass production and ability to absorb pollutants such as heavy metals from polluted soils. Due to these qualities, they are sometimes planted for soil stabilization and phytoremediation purposes.
Morphology and Structure of Plants in the Salicaceae Family
The Salicaceae family, also known as the willow family, consists of approximately 55 genera and 1100 species of trees and shrubs. These plants are known for their flexibility and adaptability, and they are found throughout much of the world, including temperate, subtropical, and tropical regions.
Plants in the Salicaceae family typically have a woody stem, which can vary in size depending on the species. The stems are often covered in a rough, gray-brown bark, which can provide protection from animals and insects. The leaves of Salicaceae plants are alternate, simple, and typically have serrated margins. They are typically lanceolate or elliptical in shape and have a thin, flexible texture that allows them to move easily in the wind.
One of the distinguishing features of the Salicaceae family is its flowers. The flowers are typically dioecious, meaning that male and female flowers are found on separate plants. The male flowers are typically small and cylindrical, while the female flowers are more conspicuous and have a distinctive structure that helps them to trap pollen. Both male and female flowers have a sweet odor that helps to attract pollinators.
Anatomical Features and Adaptations
Salicaceae plants have a number of adaptations that help them to survive in their particular environments. For example, many species have roots that are able to grow in wet or waterlogged soils, making them well-adapted to life in marshes and wetlands. Additionally, the flexible stems and branches of Salicaceae plants allow them to withstand high winds and heavy snow loads.
One of the most important adaptations of Salicaceae plants is their ability to regenerate quickly after disturbance. Many species are able to sprout from cuttings, and some are able to regenerate from the roots after being cut down. This makes them an important resource for erosion control and habitat restoration.
Variations in Leaf Shapes, Flower Structures, and Other Distinctive Characteristics
The Salicaceae family is diverse, with many different species exhibiting different leaf shapes, flower structures, and other distinctive characteristics. For example, the black willow (Salix nigra) has long, narrow leaves with a silvery underside, while the weeping willow (Salix babylonica) has long, slender leaves that hang down from the branches.
Similarly, the flowers of Salicaceae plants can vary widely. The pussy willow (Salix discolor) has fluffy, catkin-like flowers that are covered in silver-gray hairs, while the cottonwood tree (Populus deltoides) has small, inconspicuous flowers that are wind-pollinated.
Overall, the Salicaceae family is an important group of plants that are well-adapted to a variety of environments. Their flexible stems, quick regeneration, and diverse morphology make them a valuable resource for everything from erosion control to habitat restoration.
Reproductive Strategies in Salicaceae Family
Plants in the Salicaceae family employ various reproductive strategies for the propagation of their species. Unlike animals, plants are stationary and have to depend on external agents for their reproduction, such as wind and insects.Mechanisms of Reproduction
The Salicaceae family comprises dioecious and monoecious species. Dioecious plants have separate male and female individuals, while monoecious species have separate male and female flowers on the same plant. The main mode of reproduction in these plants is sexual, where flowers of different genders are required for fertilization. However, some Salicaceae species can also reproduce asexually through vegetative propagation.Flowering Patterns and Pollination Strategies
Plants in this family flower during early spring before the arrival of pollinators. Their flowers are typically small but numerous, arranged in catkins that hang vertically. Male flowers are catkins with pollen-producing stamens and no pistils, while female flowers have a pistil but no stamens. The pollination strategy of Salicaceae plants is mainly wind-mediated. As the flowers are small and the pollen is lightweight, it can be easily dispersed by the wind. Thus, the plants do not rely on specific pollinators for reproduction.Seed Dispersal Methods and Adaptations
Seed dispersal is another essential aspect of plant reproduction. In the Salicaceae family, the seeds are equipped with adaptations for dispersal by wind or water. The seeds of some species have wings to help them glide through the air and travel farther away from the parent plant. Other Salicaceae species have evolved to have buoyant seeds that can float on the water surface, allowing them to travel downstream. Some plants even produce explosive fruits that shoot out the seeds, further increasing their dispersal range. In conclusion, the reproductive strategies in plants of Salicaceae family are mainly sexual through wind-mediated pollination. The plants have evolved unique adaptations for seed dispersal, allowing them to disperse over larger geographical areas and increase their chances of successful reproduction.Economic Importance of Salicaceae Family
The Salicaceae family has significant economic importance in various sectors. One of the primary uses of plants in this family is for industrial purposes. The wood of trees in this family is widely used in the paper industry as a source of pulp. Some species, such as the black cottonwood (Populus trichocarpa), are particularly valued for their fast growth, making them an excellent source of timber for various construction purposes.
Moreover, members of the Salicaceae family have medicinal properties and have been used to treat various ailments for centuries. For example, salicylic acid, which is derived from the bark of willow trees (Salix spp.), is a popular treatment for pain and inflammation.
The Salicaceae family also has culinary uses. The buds of Populus tremula, also known as aspen, are edible and used in salads and as a garnish for various dishes. Additionally, some species, such as Populus balsamifera, have edible inner bark and are used as traditional food by some indigenous people.
Ecological Importance of Salicaceae Family
The Salicaceae family also has vital ecological roles and interactions within ecosystems. The trees in this family are often pioneer species, meaning they are the first to establish themselves in disturbed habitats. As such, they play a crucial role in facilitating ecological succession and the establishment of other organisms in the ecosystem.
Furthermore, Salicaceae species are also known to efficiently remove pollutants from soil and water and help to improve water quality. Additionally, the leaves of some Salicaceae species, such as Populus tremuloides, are an essential source of food for various herbivores, including beavers and deer.
Conservation Status and Efforts
Several species in the Salicaceae family are under threat due to habitat destruction, climate change, and overexploitation. For example, the eastern cottonwood (Populus deltoides) is listed as vulnerable in the United States due to habitat loss and fragmentation. Similarly, the Rio Grande cottonwood (Populus deltoides ssp. wislizeni) is categorized as endangered in Mexico due to the decline in riparian habitats.
The conservation of Salicaceae species is essential to maintain their ecological functions and economic value. Several conservation efforts are ongoing, ranging from the designation of protected areas, habitat restoration, and the promotion of sustainable use through various incentive schemes.
Featured plants from the Salicaceae family
More plants from the Salicaceae family
- Monilistus monilifera (Ait.) Raf. ex B.D. Jackson - >>populus Deltoides Ssp. Monilifera
- Populus 'Balsam Spire' - Tacatricho 32
- Populus acuminata Rydb. var. rehderi Sarg. - >>populus Acuminata
- Populus alba - White Poplar
- Populus alba L.
- Populus alba L. var. bolleana Lauche - >>populus Alba
- Populus alba L. var. canescens Ait. - >>populus Canescens
- Populus alba L. var. pyramidalis Bunge - >>populus Alba
- Populus angulata Ait. - >>populus Deltoides Ssp. Deltoides
- Populus angulata Ait. var. missouriensis A. Henry - >>populus Deltoides Ssp. Deltoides
- Populus angulata Aiton
- Populus angustifolia - Narrowleaf Cottonwood
- Populus angustifolia James - Narrowleaf Cottonwood
- Populus argentea Michx. f. - >>populus Heterophylla
- Populus arizonica Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus arizonica Sarg. var. jonesii Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus aurea Tidestrom - >>populus Tremuloides
- Populus balsamifera - Balsam Poplar
- Populus balsamifera L. - Balsam Poplar
- Populus balsamifera L. ssp. trichocarpa (Torr. & Gray ex Hook.) Brayshaw - Black Cottonwood
- Populus balsamifera L. var. angustifolia (James) S. Wats. - >>populus Angustifolia
- Populus balsamifera L. var. californica S. Wats. - >>populus Balsamifera Ssp. Trichocarpa
- Populus balsamifera L. var. candicans (Ait.) Gray - >>populus Balsamifera Ssp. Balsamifera
- Populus balsamifera L. var. fernaldiana Rouleau - >>populus Balsamifera Ssp. Balsamifera
- Populus balsamifera L. var. lanceolata Marsh. - >>populus Balsamifera Ssp. Balsamifera
- Populus balsamifera L. var. michauxii (Dode) A. Henry - >>populus Balsamifera Ssp. Balsamifera
- Populus balsamifera L. var. missouriensis (A. Henry) Rehd. - >>populus Deltoides Ssp. Deltoides
- Populus balsamifera L. var. pilosa Sarg. - >>populus Deltoides Ssp. Deltoides
- Populus balsamifera L. var. subcordata Hyl. - >>populus Balsamifera Ssp. Balsamifera
- Populus balsamifera L. var. virginiana (Foug.) Sarg. - >>populus Deltoides Ssp. Deltoides
- Populus besseyana Dode - >>populus Deltoides Ssp. Monilifera
- Populus canadensis Moench var. angustifolia (James) Wesmael - >>populus Angustifolia
- Populus canadensis Moench var. eugenei (Simon-Louis) Schelle - >>populus Canadensis
- Populus canadensis Moench var. fremontii (S. Wats.) Kuntze - >>populus Fremontii Ssp. Fremontii
- Populus canadensis Moench var. serotina (T. Hartig) Rehd. - >>populus Canadensis
- Populus canadensis Moench var. virginiana (Foug.) Fiori - >>populus Deltoides Ssp. Deltoides
- Populus candicans Ait. - >>populus Balsamifera Ssp. Balsamifera
- Populus cercidiphylla Britt. - >>populus Tremuloides
- Populus ciliata
- Populus deltoides - Eastern Cottonwood
- Populus deltoides Bartr. ex Marsh. - Eastern Cottonwood
- Populus deltoides Bartr. ex Marsh. ssp. monilifera (Ait.) Eckenwalder - Plains Cottonwood
- Populus deltoides Bartr. ex Marsh. ssp. wislizeni (S. Wats.) Eckenwalder - Rio Grande Cottonwood
- Populus deltoides Bartr. ex Marsh. var. angulata (Ait.) Sarg. - >>populus Deltoides Ssp. Deltoides
- Populus deltoides Bartr. ex Marsh. var. missouriensis (A. Henry) A. Henry - >>populus Deltoides Ssp. Deltoides
- Populus deltoides Bartr. ex Marsh. var. occidentalis Rydb. - >>populus Deltoides Ssp. Monilifera
- Populus deltoides Bartr. ex Marsh. var. pilosa (Sarg.) Sudworth - >>populus Deltoides Ssp. Deltoides
- Populus deltoides Bartr. ex Marsh. var. virginiana (Foug.) Sudworth - >>populus Deltoides Ssp. Deltoides
- Populus deltoides Bartr. ex Marsh. var. wislizeni (S. Wats.) Dorn - >>populus Deltoides Ssp. Wislizeni
- Populus deltoides Marshall subsp. deltoides
- Populus deltoides Marshall var. missouriensis Henry
- Populus deltoides monilifera - Plains Cottonwood
- Populus deltoides wislizenii - Rio Grande Cottonwood
- Populus dilatata Ait. - >>populus Nigra
- Populus euphratica
- Populus euphratica Olivier subsp. denhardtiorum Engl.
- Populus euramericana Guinier - >>populus Canadensis
- Populus fortissima A. Nels. & J.F. Macbr. - >>populus Angustifolia
- Populus fremontii S. Wats. - Fremont Cottonwood
- Populus fremontii S. Wats. ssp. fremontii - Fremont Cottonwood
- Populus fremontii S. Wats. ssp. mesetae Eckenwalder - Fremont Cottonwood
- Populus fremontii S. Wats. var. arizonica (Sarg.) Jepson - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. macdougalii (Rose) Jepson - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. macrodisca Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. mesetae (Eckenwalder) Little - >>populus Fremontii Ssp. Mesetae
- Populus fremontii S. Wats. var. pubescens Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. thornberi Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. toumeyi Sarg. - >>populus Fremontii Ssp. Fremontii
- Populus fremontii S. Wats. var. wislizeni S. Wats. - >>populus Deltoides Ssp. Wislizeni
- Populus grandidentata - Canadian Aspen
- Populus grandidentata Michx. - Bigtooth Aspen
- Populus grandidentata Michx. var. angustata Victorin - >>populus Grandidentata
- Populus grandidentata Michx. var. meridionalis Tidestrom - >>populus Grandidentata
- Populus grandidentata Michx. var. subcordata Victorin - >>populus Grandidentata
- Populus hastata Dode p.p. - >>populus Balsamifera Ssp. Trichocarpa
- Populus heterophylla - Swamp Cottonwood
- Populus heterophylla L. - Swamp Cottonwood
- Populus hybrida Bieb. - >>populus Canescens
- Populus ilicifolia (Engl.) Rouleau
- Populus italica (Du Roi) Moench - >>populus Nigra
- Populus L. - Cottonwood
- Populus macdougalii Rose - >>populus Fremontii Ssp. Fremontii
- Populus manitobensis Dode - >>populus Jackii
- Populus maximowiczii - Doronoki
- Populus mexicana auct. non Wesmael - >>populus Fremontii Ssp. Mesetae
- Populus michauxii Dode - >>populus Balsamifera Ssp. Balsamifera
- Populus monilifera Ait. - >>populus Deltoides Ssp. Monilifera
- Populus nigra L. - Lombardy Poplar
- Populus nigra L.
- Populus nigra L. var. italica Du Roi - >>populus Nigra
- Populus nigra L. var. italica Münchh.
- Populus nigra L. var. virginiana (Foug.) Castigl. - >>populus Deltoides Ssp. Deltoides
- Populus nivea Wesm.
- Populus occidentalis (Rydb.) Britt. ex Rydb. - >>populus Deltoides Ssp. Monilifera
- Populus palmeri Sarg. - >>populus Deltoides Ssp. Deltoides
- Populus salicifolia Raf. - >>populus Angustifolia
- Populus sargentii Dode - >>populus Deltoides Ssp. Monilifera
- Populus sargentii Dode var. texana (Sarg.) Correll - >>populus Deltoides Ssp. Monilifera
- Populus simonii
- Populus tacamahaca P. Mill. - >>populus Balsamifera Ssp. Balsamifera
- Populus tacamahaca P. Mill. var. candicans (Ait.) Stout - >>populus Balsamifera Ssp. Balsamifera
- Populus tacamahaca P. Mill. var. lanceolata (Marsh.) Farw. - >>populus Balsamifera Ssp. Balsamifera
- Populus tacamahaca P. Mill. var. michauxii (Dode) Farw. - >>populus Balsamifera Ssp. Balsamifera
- Populus texana Sarg. - >>populus Deltoides Ssp. Monilifera
- Populus tomentosa Carr. - Chinese White Poplar
- Populus tremula - Aspen Poplar
- Populus tremula L. - European Aspen
- Populus tremula L. ssp. tremuloides (Michx.) A.& D. Löve - >>populus Tremuloides
- Populus tremuloides Michx. - Quaking Aspen
- Populus tremuloides Michx. var. aurea (Tidestrom) Daniels - >>populus Tremuloides
- Populus tremuloides Michx. var. cercidiphylla (Britt.) Sudworth - >>populus Tremuloides
- Populus tremuloides Michx. var. intermedia Victorin - >>populus Tremuloides
- Populus tremuloides Michx. var. magnifica Victorin - >>populus Tremuloides
- Populus tremuloides Michx. var. rhomboidea Victorin - >>populus Tremuloides
- Populus tremuloides Michx. var. vancouveriana (Trel.) Sarg. - >>populus Tremuloides
- Populus trichocarpa - Western Balsam Poplar
- Populus trichocarpa Torr. & Gray ex Hook. - >>populus Balsamifera Ssp. Trichocarpa
- Populus trichocarpa Torr. & Gray ex Hook. ssp. hastata (Dode) Dode p.p. - >>populus Balsamifera Ssp. Trichocarpa
- Populus trichocarpa Torr. & Gray ex Hook. var. cupulata S. Wats. - >>populus Balsamifera Ssp. Trichocarpa
- Populus trichocarpa Torr. & Gray ex Hook. var. hastata (Dode) A. Henry p.p. - >>populus Balsamifera Ssp. Trichocarpa
- Populus trichocarpa Torr. & Gray ex Hook. var. ingrata (Jepson) Jepson - >>populus Balsamifera Ssp. Trichocarpa
- Populus tweedyi Britt. - >>populus Angustifolia
- Populus vancouveriana Trel. - >>populus Tremuloides
- Populus virginiana Foug. - >>populus Deltoides Ssp. Deltoides
- Populus virginiana Foug. var. pilosa (Sarg.) F.C. Gates - >>populus Deltoides Ssp. Deltoides
- Populus wislizeni (S. Wats.) Sarg. - >>populus Deltoides Ssp. Wislizeni
- Populus x canadensis - Canadian Poplar
- Populus x canescens - Grey Poplar
- Populus x canescens (Aiton) Sm.
- Populus x jackii - Balm Of Gilead
- Populus ×acuminata Rydb. (pro sp.) - Lanceleaf Cottonwood
- Populus ×andrewsii Sarg. - >>populus Jackii
- Populus ×barnesii W.H. Wagner - >>populus Smithii
- Populus ×bernardii Boivin - >>populus Jackii
- Populus ×brayshawii Boivin - Hybrid Balsam Poplar
- Populus ×canadensis Moench (pro sp.) - Carolina Poplar
- Populus ×canescens (Ait.) Sm. (pro sp.) - Gray Poplar
- Populus ×dutillyi Lepage - >>populus Jackii
- Populus ×eugenei Simon-Louis - >>populus Canadensis
- Populus ×generosa Henry - >>populus Jackii
- Populus ×gileadensis Rouleau - >>populus Jackii
- Populus ×heimburgeri Boivin
- Populus ×hinckleyana Correll (pro sp.)
- Populus ×inopina Eckenwalder
- Populus ×jackii Sarg. - Balm-of-gilead
- Populus ×parryi Sarg.
- Populus ×polygonifolia Bernard - >>populus Tremuloides
- Populus ×rouleauiana Boivin
- Populus ×sennii Boivin - >>populus Angustifolia
- Populus ×smithii Boivin
- Salix 'Americana'
- Salix 'Bowles hybrid'
- Salix 'Forbiana'
- Salix acutidens Rydb. - >>salix Eriocephala
- Salix acutifolia - Sharp-leaf Willow
- Salix acutifolia auct. non Hook. - >>salix Arbusculoides
- Salix adamauensis Seemen
- Salix adenophylla Hook. - >>salix Cordata
- Salix aegyptiaca
- Salix alaxensis - Feltleaf Wiillow
- Salix alaxensis (Anderss.) Coville - Feltleaf Willow
- Salix alaxensis (Anderss.) Coville ssp. longistylis (Rydb.) Hultén - >>salix Alaxensis Var. Longistylis
- Salix alaxensis (Anderss.) Coville var. alaxensis - Feltleaf Willow
- Salix alaxensis (Anderss.) Coville var. longistylis (Rydb.) Schneid. - Feltleaf Willow
- Salix alaxensis (Anderss.) Coville var. obovalifolia Ball - >>salix Alaxensis Var. Alaxensis
- Salix alba - White Willow
- Salix alba caerulea - Cricket Bat Willow
- Salix alba L. ssp. caerulea (Sm.) Rech. f. - >>salix Alba
- Salix alba L. ssp. vitellina (L.) Arcang. - >>salix Alba
- Salix alba L. var. caerulea (Sm.) Sm. - >>salix Alba
- Salix alba L. var. calva G.F.W. Mey. - >>salix Alba
- Salix alba L. var. vitellina (L.) Stokes - >>salix Alba
- Salix albertana Rowlee - >>salix Barrattiana
- Salix aliena Flod. - >>salix Setchelliana
- Salix alpina Walt. - >>salix Humilis Var. Tristis
- Salix ambigua Pursh, non Ehrh. - >>salix Nigra
- Salix amelanchieroides L. Kelso - >>salix Monticola
- Salix amphibia Small - >>salix Caroliniana
- Salix amplifolia Coville - >>salix Hookeriana
- Salix amygdaloides - Peach Leaved Wilow
- Salix amygdaloides Anderss. - Peachleaf Willow
- Salix amygdaloides Anderss. var. wrightii (Anderss.) Schneid. - >>salix Amygdaloides
- Salix ancorifera Fern. - >>salix Discolor
- Salix anglorum auct. non Cham. - >>salix Arctica
- Salix anglorum Cham. - >>salix Phlebophylla
- Salix anglorum Cham. var. antiplasta Schneid. - >>salix Arctica
- Salix anglorum Cham. var. araioclada Schneid. - >>salix Arctica
- Salix anglorum Cham. var. kophophylla Schneid. - >>salix Arctica
- Salix angustata Pursh - >>salix Eriocephala
- Salix appendiculata
- Salix arbuscula L. var. labradorica (Anderss.) Anderss. - >>salix Uva-ursi
- Salix arbusculoides Anderss. - Littletree Willow
- Salix arbusculoides Anderss. var. glabra (Anderss.) Anderss. ex Schneid. - >>salix Pulchra
- Salix arbutifolia auct. non Pallas - >>salix Fuscescens
- Salix arctica Liebm., non Pallas - >>salix Arctophila
- Salix arctica Pallas - Arctic Willow
- Salix arctica Pallas ssp. crassijulis (Trautv.) Skvort. - >>salix Arctica
- Salix arctica Pallas ssp. petraea (Anderss.) A.& D. Löve & Kapoor - >>salix Petrophila
- Salix arctica Pallas ssp. tortulosa (Trautv.) Hultén - >>salix Arctica
- Salix arctica Pallas var. antiplasta (Schneid.) Fern. - >>salix Arctica
- Salix arctica Pallas var. araioclada (Schneid.) Raup - >>salix Arctica
- Salix arctica Pallas var. brownei Anderss. - >>salix Arctica
- Salix arctica Pallas var. caespitosa (Kennedy) L. Kelso - >>salix Petrophila
- Salix arctica Pallas var. graminifolia (E.H. Kelso) L. Kelso - >>salix Petrophila
- Salix arctica Pallas var. kophophylla (Schneid.) Polunin - >>salix Arctica
- Salix arctica Pallas var. pallasii (Anderss.) Kurtz - >>salix Arctica
- Salix arctica Pallas var. petraea (Anderss.) Bebb - >>salix Petrophila
- Salix arctica Pallas var. petrophila (Rydb.) L. Kelso - >>salix Petrophila
- Salix arctica Pallas var. subcordata (Anderss.) Schneid. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix arctica Pallas var. tortulosa (Trautv.) Raup - >>salix Arctica
- Salix arctica R. Br. ex Richards., non Pallas - >>salix Arctica
- Salix arctolitoralis Hultén - >>salix Ovalifolia Var. Arctolitoralis
- Salix arctophila Cockerell ex Heller - Northern Willow
- Salix arctophila Cockerell ex Heller var. lejocarpa (Anderss.) Schneid. - >>salix Arctophila
- Salix arenaria
- Salix argophylla Nutt. - >>salix Exigua
- Salix arguta Anderss. - >>salix Lucida Ssp. Lasiandra
- Salix arguta Anderss. var. alpigena Anderss. - >>salix Serissima
- Salix arguta Anderss. var. erythrocoma (Anderss.) Anderss. - >>salix Lucida Ssp. Lasiandra
- Salix arguta Anderss. var. hirtisquama (Anderss.) Anderss. - >>salix Lucida Ssp. Lucida
- Salix arguta Anderss. var. lasiandra (Benth.) Anderss. - >>salix Lucida Ssp. Lasiandra
- Salix arguta Anderss. var. pallescens Anderss. - >>salix Serissima
- Salix argyrocarpa Anderss. - Labrador Willow
- Salix argyrocarpa Anderss. var. denudata Anderss. - >>salix Argyrocarpa
- Salix arizonica Dorn - Arizona Willow
- Salix astatulana Murrill & Palmer - >>salix Floridana
- Salix athabascensis Raup - Athabasca Willow
- Salix atrocinerea - Rusty Sallow
- Salix atrocinerea Brot. - >>salix Cinerea Ssp. Oleifolia
- Salix aurita - Eared Sallow
- Salix aurita L. - Eared Willow
- Salix austinae Bebb - >>salix Lemmonii
- Salix axillaris A.Rich.
- Salix babylonica - Weeping Willow
- Salix babylonica auct. non L. - >>salix Pendulina
- Salix babylonica auct. non L. - >>salix Sepulcralis
- Salix babylonica L. var. babylonica
- Salix bakeri von Seem. - >>salix Lasiolepis Var. Lasiolepis
- Salix bakko
- Salix balsamifera (Hook.) Barratt ex Anderss. - >>salix Pyrifolia
- Salix balsamifera (Hook.) Barratt ex Anderss. var. alpestris Bebb - >>salix Pyrifolia
- Salix balsamifera (Hook.) Barratt ex Anderss. var. lanceolata Bebb - >>salix Pyrifolia
- Salix balsamifera (Hook.) Barratt ex Anderss. var. vegeta Bebb - >>salix Pyrifolia
- Salix barclayi Anderss. - Barclay's Willow
- Salix barclayi Anderss. var. angustifolia (Anderss.) Anderss. ex Schneid. - >>salix Barclayi
- Salix barclayi Anderss. var. cochetopiana L. Kelso - >>salix Monticola
- Salix barclayi Anderss. var. commutata (Bebb) L. Kelso - >>salix Commutata
- Salix barclayi Anderss. var. conjuncta (Bebb) Ball ex Schneid. - >>salix Barclayi
- Salix barclayi Anderss. var. hebecarpa Anderss. - >>salix Pulchra
- Salix barclayi Anderss. var. neomexicana (E.H. Kelso) L. Kelso - >>salix Monticola
- Salix barclayi Anderss. var. padophylla (Rydb.) L. Kelso - >>salix Monticola
- Salix barclayi Anderss. var. pseudomonticola (Ball) L. Kelso - >>salix Pseudomonticola
- Salix barclayi Anderss. var. resurrectionis L. Kelso - >>salix Monticola
- Salix barclayi Anderss. var. uncompahgre L. Kelso - >>salix Monticola
- Salix barclayi Anderss. var. veritomonticola L. Kelso - >>salix Monticola
- Salix barrattiana Hook. - Barratt's Willow
- Salix barrattiana Hook. var. angustifolia Anderss. - >>salix Barrattiana
- Salix barrattiana Hook. var. latifolia Anderss. - >>salix Barrattiana
- Salix barrattiana Hook. var. marcescens Raup - >>salix Barrattiana
- Salix barrattiana Hook. var. tweedyi Bebb ex Rose - >>salix Tweedyi
- Salix bebbiana - Beak Willow
- Salix bebbiana Sarg. var. capreifolia (Fern.) Fern. - >>salix Bebbiana
- Salix bebbiana Sarg. var. depilis Raup - >>salix Bebbiana
- Salix bebbiana Sarg. var. luxurians (Fern.) Fern. - >>salix Bebbiana
- Salix bebbiana Sarg. var. perrostrata (Rydb.) Schneid. - >>salix Bebbiana
- Salix bebbiana Sarg. var. projecta (Fern.) Schneid. - >>salix Bebbiana
- Salix behringica von Seem. - >>salix Rotundifolia Ssp. Rotundifolia
- Salix bella Piper - >>salix Drummondiana
- Salix bigelovii Torr. - >>salix Lasiolepis Var. Bigelovii
- Salix boiseana A. Nels. - >>salix Lasiolepis Var. Lasiolepis
- Salix bolanderiana Rowlee - >>salix Melanopsis
- Salix bonplandiana Kunth - Bonpland Willow
- Salix bonplandiana Kunth var. laevigata (Bebb) Dorn - >>salix Laevigata
- Salix bonplandiana Kunth var. toumeyi (Britt. & Shafer) Schneid. - >>salix Bonplandiana
- Salix boothii Dorn - Booth's Willow
- Salix brachycarpa
- Salix brachycarpa Nutt. - Shortfruit Willow
- Salix brachycarpa Nutt. ssp. fullertonensis (Schneid.) A.& D. Löve - >>salix Niphoclada
- Salix brachycarpa Nutt. ssp. niphoclada (Rydb.) Argus - >>salix Niphoclada
- Salix brachycarpa Nutt. var. alticola E.H. Kelso - >>salix Brachycarpa
- Salix brachycarpa Nutt. var. antimima (Schneid.) Raup - >>salix Brachycarpa
- Salix brachycarpa Nutt. var. fullertonensis (Schneid.) Argus - >>salix Niphoclada
- Salix brachycarpa Nutt. var. glabellicarpa Schneid. - >>salix Brachycarpa
- Salix brachycarpa Nutt. var. mexiae Ball - >>salix Niphoclada
- Salix brachycarpa Nutt. var. sansonii Ball - >>salix Brachycarpa
- Salix brachystachys Benth. - >>salix Scouleriana
- Salix brachystachys Benth. var. scouleriana (Barratt ex Hook.) Anderss. - >>salix Scouleriana
- Salix breweri Bebb - Brewer's Willow
- Salix breweri Bebb var. delnortensis (Schneid.) Jepson - >>salix Delnortensis
- Salix brownei (Anderss.) Bebb - >>salix Arctica
- Salix brownei (Anderss.) Bebb var. petraea (Anderss.) Bebb - >>salix Petrophila
- Salix brownii (Anderss.) Bebb var. tenera (Anderss.) M.E. Jones - >>salix Cascadensis
- Salix caespitosa Kennedy - >>salix Petrophila
- Salix calcicola Fern. & Wieg. - Woolly Willow
- Salix calcicola Fern. & Wieg. var. glandulosior Boivin - >>salix Calcicola
- Salix calcicola Fern. & Wieg. var. nicholsiana Polunin - >>salix Calcicola
- Salix californica Bebb - >>salix Eastwoodiae
- Salix candida Flueggé ex Willd. - Sageleaf Willow
- Salix candida Flueggé ex Willd. var. denudata Anderss. - >>salix Candida
- Salix candida Flueggé ex Willd. var. tomentosa Anderss. - >>salix Candida
- Salix candidula Nieuwl. - >>salix Candida
- Salix capensis Thunb.
- Salix capensis Thunb. var. gariepina (Burch.) Anderson
- Salix capensis Thunb. var. mucronata (Thunb.) Anderson
- Salix caprea - Goat Willow
- Salix caprea L. - Goat Willow
- Salix caprea L.
- Salix capreoides Anderss. - >>salix Scouleriana
- Salix caroliniana Michx. - Coastal Plain Willow
- Salix cascadensis Cockerell - Cascade Willow
- Salix cascadensis Cockerell var. thompsonii Brayshaw - >>salix Cascadensis
- Salix caudata (Nutt.) Heller - >>salix Lucida Ssp. Caudata
- Salix caudata (Nutt.) Heller var. bryantiana Ball & Braceline - >>salix Lucida Ssp. Caudata
- Salix caudata (Nutt.) Heller var. parvifolia Ball - >>salix Lucida Ssp. Caudata
- Salix chaenomeloides
- Salix chamissonis Anderss. - Chamisso's Willow
- Salix chapmanii Small - >>salix Floridana
- Salix chevalieri Seemen
- Salix chilensis Molina - >>salix Humboldtiana
- Salix chlorolepis Fern. var. antimima Schneid. - >>salix Brachycarpa
- Salix chlorophylla Anderss. - >>salix Planifolia
- Salix chlorophylla Anderss. var. monica (Bebb) Flod. - >>salix Planifolia
- Salix chlorophylla Anderss. var. nelsonii (Ball) Flod. - >>salix Planifolia
- Salix chlorophylla Anderss. var. pellita Anderss. - >>salix Pellita
- Salix chlorophylla Anderss. var. pychnocarpa (Anderss.) Anderss. - >>salix Planifolia
- Salix cinerea - Grey Willow
- Salix cinerea L. - Large Gray Willow
- Salix cinerea L. ssp. atrocinerea (Brot.) Guinier - >>salix Cinerea Ssp. Oleifolia
- Salix cinerea L. ssp. cinerea - Large Gray Willow
- Salix cinerea L. ssp. oleifolia (Sm.) Macreight - Large Gray Willow
- Salix coactilis Fern. - >>salix Sericea
- Salix coluteoides Mirb.
- Salix commutata
- Salix commutata Bebb - Undergreen Willow
- Salix commutata Bebb var. denudata Bebb - >>salix Commutata
- Salix commutata Bebb var. mixta Piper - >>salix Commutata
- Salix commutata Bebb var. puberula Bebb - >>salix Commutata
- Salix commutata Bebb var. rubicunda Jepson - >>salix Orestera
- Salix commutata Bebb var. sericea Bebb - >>salix Commutata
- Salix conformis Forbes - >>salix Discolor
- Salix congesta (Bebb ex Rothrock) J.T. Howell - >>salix Laevigata
- Salix conifera Muhl., non Wangenh. - >>salix Humilis Var. Humilis
- Salix conjuncta Bebb - >>salix Barclayi
- Salix cordata Michx. - Heartleaf Willow
- Salix cordata Michx. var. crux-aureae L. Kelso - >>salix Monticola
- Salix cordata Michx. var. ligulifolia (Ball) L. Kelso - >>salix Ligulifolia
- Salix cordata Michx. var. monticola (Bebb) L. Kelso - >>salix Monticola
- Salix cordata Muhl. ssp. rigida (Muhl.) Anderss. - >>salix Eriocephala
- Salix cordata Muhl. var. abrasa Fern. - >>salix Eriocephala
- Salix cordata Muhl. var. angustata (Pursh) Anderss. - >>salix Eriocephala
- Salix cordata Muhl. var. balsamifera Hook. - >>salix Pyrifolia
- Salix cordata Muhl. var. denveriana L. Kelso - >>salix Lutea
- Salix cordata Muhl. var. desolata (E.H. Kelso) L. Kelso - >>salix Lutea
- Salix cordata Muhl. var. glaucophylla Bebb - >>salix Myricoides Var. Myricoides
- Salix cordata Muhl. var. lutea (Nutt.) Bebb - >>salix Lutea
- Salix cordata Muhl. var. mackenzieana Hook. - >>salix Prolixa
- Salix cordata Muhl. var. missouriensis (Bebb) Mackenzie & Bush - >>salix Eriocephala
- Salix cordata Muhl. var. myricoides (Muhl.) Carey - >>salix Myricoides Var. Myricoides
- Salix cordata Muhl. var. platyphylla (Ball) L. Kelso - >>salix Lutea
- Salix cordata Muhl. var. rigida (Muhl.) Anderss. - >>salix Eriocephala
- Salix cordata Muhl. var. rigida (Muhl.) Boivin - >>salix Eriocephala
- Salix cordata Muhl. var. rigida (Muhl.) Carey - >>salix Eriocephala
- Salix cordata Muhl. var. vestita (Anderss.) Bebb (pro syn.) - >>salix Eriocephala
- Salix cordata Muhl. var. watsonii Bebb - >>salix Lutea
- Salix cordata Muhl., non Michx. - >>salix Eriocephala
- Salix coulteri Anderss. - >>salix Sitchensis
- Salix covillei Eastw. - >>salix Drummondiana
- Salix crassa Barratt - >>salix Discolor
- Salix crassijulis Trautv. - >>salix Arctica
- Salix crateradenia Seemen
- Salix cuneata Nutt. - >>salix Sitchensis
- Salix cuneata Turcz. ex Ledeb., non Nutt. - >>salix Sphenophylla
- Salix curtiflora auct. non Anderss. - >>salix Boothii
- Salix cutleri Tuckerman - >>salix Uva-ursi
- Salix cutleri Tuckerman var. labradorica (Anderss.) Anderss. - >>salix Uva-ursi
- Salix cyathopoda A.Rich.
- Salix cyclophylla Rydb. - >>salix Ovalifolia Var. Cyclophylla
- Salix decipiens
- Salix delnortensis Schneid. - Del Norte Willow
- Salix denudata Raf. - >>salix Nigra
- Salix depressa L. ssp. rostrata (Richards.) Hiitonen - >>salix Bebbiana
- Salix desertorum Richards. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix desertorum Richards. var. elata Anderss. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix desertorum Richards. var. fruticulosa Anderss. - >>salix Brachycarpa
- Salix desertorum Richards. var. stricta Anderss. - >>salix Brachycarpa
- Salix discolor Muhl. var. eriocephala (Michx.) Anderss. - >>salix Eriocephala
- Salix discolor Muhl. var. latifolia Anderss. - >>salix Conifera
- Salix discolor Muhl. var. overi Ball - >>salix Discolor
- Salix discolor Muhl. var. prinoides (Pursh) Anderss. - >>salix Discolor
- Salix discolor Muhl. var. rigidior (Anderss.) Schneid. - >>salix Discolor
- Salix dissymetrica L. Kelso - >>salix Monticola
- Salix dodgeana Rydb. - >>salix Rotundifolia Ssp. Dodgeana
- Salix dodgeana Rydb. var. subrariflora (L. Kelso) L. Kelso - >>salix Rotundifolia Ssp. Dodgeana
- Salix drummondiana Barratt ex Hook. - Drummond's Willow
- Salix drummondiana Barratt ex Hook. ssp. subcaerulea (Piper) E. Murr. - >>salix Drummondiana
- Salix drummondiana Barratt ex Hook. var. bella (Piper) Ball - >>salix Drummondiana
- Salix drummondiana Barratt ex Hook. var. subcaerulea (Piper) Ball - >>salix Drummondiana
- Salix dubia Trautv. - >>salix Nigra
- Salix elaeagnos Scop. - Elaeagnus Willow
- Salix elegantissima K. Koch - >>salix Pendulina
- Salix eriocephala - Missouri Willow
- Salix eriocephala Michx. - Missouri River Willow
- Salix eriocephala Michx. ssp. mackenzieana (Hook.) Dorn - >>salix Prolixa
- Salix eriocephala Michx. var. famelica (Ball) Dorn - >>salix Lutea
- Salix eriocephala Michx. var. ligulifolia (Ball) Dorn - >>salix Ligulifolia
- Salix eriocephala Michx. var. mackenzieana (Hook.) Dorn - >>salix Prolixa
- Salix eriocephala Michx. var. monochroma (Ball) Dorn - >>salix Monochroma
- Salix eriocephala Michx. var. watsonii (Bebb) Dorn - >>salix Lutea
- Salix exigua - Coyote Willow
- Salix exigua Nutt. - Narrowleaf Willow
- Salix exigua Nutt. ssp. interior (Rowlee) Cronq. - >>salix Interior
- Salix exigua Nutt. ssp. melanopsis (Nutt.) Cronq. - >>salix Melanopsis
- Salix exigua Nutt. var. angustissima (Anderss.) Reveal & Broome - >>salix Exigua
- Salix exigua Nutt. var. columbiana Dorn - >>salix Exigua
- Salix exigua Nutt. var. exterior (Fern.) C.F. Reed - >>salix Interior
- Salix exigua Nutt. var. gracilipes (Ball) Cronq. - >>salix Melanopsis
- Salix exigua Nutt. var. hindsiana (Benth.) Dorn - >>salix Exigua
- Salix exigua Nutt. var. luteosericea (Rydb.) Schneid. - >>salix Exigua
- Salix exigua Nutt. var. nevadensis (S. Wats.) Schneid. - >>salix Exigua
- Salix exigua Nutt. var. parishiana (Rowlee) Jepson - >>salix Exigua
- Salix exigua Nutt. var. pedicellata (Anderss.) Cronq. - >>salix Interior
- Salix exigua Nutt. var. sessilifolia (Nutt.) Dorn - >>salix Sessilifolia
- Salix exigua Nutt. var. stenophylla (Rydb.) Schneid. - >>salix Exigua
- Salix exigua Nutt. var. tenerrima (Henderson) Schneid. - >>salix Melanopsis
- Salix exigua Nutt. var. virens Rowlee - >>salix Exigua
- Salix falcata Pursh - >>salix Nigra
- Salix fallax Raup - >>salix Athabascensis
- Salix farriae Ball - Farr's Willow
- Salix farriae Ball var. microserrulata Ball - >>salix Farriae
- Salix farriae Ball var. walpolei Coville & Ball - >>salix Hastata
- Salix fendleriana Anderss. - >>salix Lucida Ssp. Caudata
- Salix fernaldii Blank. - >>salix Vestita
- Salix flagellaris Hultén - >>salix Ovalifolia Var. Ovalifolia
- Salix flava Rydb., non Schoepf - >>salix Lutea
- Salix flavescens Nutt. - >>salix Scouleriana
- Salix flavescens Nutt. var. capreoides (Anderss.) Bebb - >>salix Scouleriana
- Salix flavescens Nutt. var. scouleriana (Barratt ex Hook.) Bebb - >>salix Scouleriana
- Salix flavovirens Hornem. - >>salix Nigra
- Salix floridana Chapman - Florida Willow
- Salix fluviatilis - River Willow
- Salix fluviatilis auct. non Nutt. - >>salix Melanopsis
- Salix fluviatilis Nutt. - River Willow
- Salix fluviatilis Nutt. var. argophylla (Nutt.) Sarg. - >>salix Exigua
- Salix fluviatilis Nutt. var. sericans (Nees) Boivin - >>salix Interior
- Salix fluviatilis Nutt. var. sessilifolia (Nutt.) Scoggan - >>salix Sessilifolia
- Salix fluviatilis Nutt. var. tenerrima (Henderson) T.J. Howell - >>salix Melanopsis
- Salix fragilis - Crack Willow
- Salix fragilis L. - Crack Willow
- Salix fragilis L. var. fragilis
- Salix franciscana von Seem. - >>salix Lasiolepis Var. Bigelovii
- Salix fulcrata Anderss. var. subglauca Anderss. - >>salix Pulchra
- Salix fullertonensis Schneid. - >>salix Niphoclada
- Salix fuscata Pursh - >>salix Discolor
- Salix fuscescens Anderss. - Alaska Bog Willow
- Salix fuscescens Anderss. var. hebecarpa Fern. - >>salix Pedicellaris
- Salix fuscescens Anderss. var. reducta Ball - >>salix Fuscescens
- Salix geyeriana Anderss. - Geyer's Willow
- Salix geyeriana Anderss. ssp. argentea (Bebb) E. Murr. - >>salix Geyeriana
- Salix geyeriana Anderss. var. argentea (Bebb) Schneid. - >>salix Geyeriana
- Salix geyeriana Anderss. var. meleina J.K. Henry - >>salix Geyeriana
- Salix gilgiana
- Salix glacialis Anderss. - >>salix Ovalifolia Var. Glacialis
- Salix glauca L. - Grayleaf Willow
- Salix glauca L. ssp. acutifolia (Hook.) Hultén - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix glauca L. ssp. desertorum (Richards.) Hultén - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. ssp. glabrescens (Anderss.) Hultén - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. ssp. glauca - Grayleaf Willow
- Salix glauca L. ssp. glauca var. acutifolia (Hook.) Schneid. - Grayleaf Willow
- Salix glauca L. ssp. glauca var. glauca - Grayleaf Willow
- Salix glauca L. ssp. glauca var. villosa (D. Don ex Hook.) Anderss. - Grayleaf Willow
- Salix glauca L. ssp. orestera (Schneid.) Youngberg - >>salix Orestera
- Salix glauca L. var. alicea Ball - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix glauca L. var. glabrescens (Anderss.) Schneid. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. var. kenosha (L. Kelso) L. Kelso - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. var. niphoclada (Rydb.) Wiggins - >>salix Niphoclada
- Salix glauca L. var. orestera (Schneid.) Jepson - >>salix Orestera
- Salix glauca L. var. perstipulata Raup - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix glauca L. var. poliophylla (Schneid.) Raup - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix glauca L. var. pseudolapponum (von Seem.) L. Kelso - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. var. seemanii (Rydb.) Ostenf. - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix glauca L. var. sericea Hultén - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. var. subincurva (E.H. Kelso) L. Kelso - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glauca L. var. villosa auct. non (D. Don ex Hook.) Anderss. - >>salix Orestera
- Salix glaucophylla Bebb var. albovestita Ball - >>salix Myricoides Var. Albovestita
- Salix glaucophylla Bebb var. angustifolia Bebb - >>salix Myricoides Var. Myricoides
- Salix glaucophylla Bebb var. brevifolia Bebb - >>salix Myricoides Var. Myricoides
- Salix glaucophylla Bebb var. latifolia Bebb - >>salix Myricoides Var. Myricoides
- Salix glaucophylla Bebb, non Bess. nec Anderss. - >>salix Myricoides Var. Myricoides
- Salix glaucophylloides Fern. - >>salix Myricoides Var. Myricoides
- Salix glaucophylloides Fern. var. albovestita (Ball) Fern. - >>salix Myricoides Var. Albovestita
- Salix glaucophylloides Fern. var. brevifolia (Bebb) Ball - >>salix Myricoides Var. Myricoides
- Salix glaucophylloides Fern. var. glaucophylla (Bebb) Schneid. - >>salix Myricoides Var. Myricoides
- Salix glaucops Anderss. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glaucops Anderss. var. glabrescens Anderss. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix glaucops Anderss. var. villosa (D. Don ex Hook.) Anderss. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix gooddingii - Goodding's Willow
- Salix gooddingii Ball - Goodding's Willow
- Salix gooddingii Ball var. vallicola (Dudley) Ball - >>salix Gooddingii
- Salix gooddingii Ball var. variabilis Ball - >>salix Gooddingii
- Salix gracilis Anderss. - >>salix Petiolaris
- Salix gracilis Anderss. var. rosmarinoides Anderss. - >>salix Petiolaris
- Salix gracilis Anderss. var. textoris Fern. - >>salix Petiolaris
- Salix grisea Willd. - >>salix Sericea
- Salix groenlandica Lundstr. var. lejocarpa (Anderss.) Lange - >>salix Arctophila
- Salix groenlandica Lundstr., non Heer - >>salix Arctophila
- Salix harbisonii Schneid. - >>salix Caroliniana
- Salix hastata - Halberd-leaved Willow
- Salix hastata L. - Halberd Willow
- Salix hastata L. ssp. subintegrifolia (Flod.) Flod. - >>salix Hastata
- Salix hastata L. var. farriae (Ball) Hultén - >>salix Farriae
- Salix hastata L. var. subintegrifolia Flod. - >>salix Hastata
- Salix hebecarpa (Fern.) Fern. - >>salix Pedicellaris
- Salix herbacea L. - Snowbed Willow
- Salix hindsiana Benth. - >>salix Exigua
- Salix hindsiana Benth. var. leucodendroides (Rowlee) Ball - >>salix Exigua
- Salix hindsiana Benth. var. parishiana (Rowlee) Ball - >>salix Exigua
- Salix hindsiana Benth. var. tenuifolia (Anderss.) Anderss. - >>salix Exigua
- Salix hirsuta Thunb.
- Salix hookeriana - Dune Willow
- Salix hookeriana Barratt ex Hook. - Dune Willow
- Salix hookeriana Barratt ex Hook. var. laurifolia J.K. Henry - >>salix Hookeriana
- Salix hookeriana Barratt ex Hook. var. tomentosa J.K. Henry ex Schneid. - >>salix Hookeriana
- Salix hoyeriana Dieck - >>salix Barclayi
- Salix hudsonensis Schneid. - >>salix Arctica
- Salix humboldtiana Willd. - Humboldt's Willow
- Salix humboldtiana Willd. var. fastigiata André - >>salix Humboldtiana
- Salix humilis Marsh. - Prairie Willow
- Salix humilis Marsh. var. angustifolia (Barratt) Anderss. - >>salix Humilis Var. Humilis
- Salix humilis Marsh. var. grandifolia (Barratt) Anderss. - >>salix Humilis Var. Humilis
- Salix humilis Marsh. var. humilis - Prairie Willow
- Salix humilis Marsh. var. hyporhysa Fern. - >>salix Humilis Var. Humilis
- Salix humilis Marsh. var. keweenawensis Farw. - >>salix Humilis Var. Humilis
- Salix humilis Marsh. var. microphylla (Anderss.) Fern. - >>salix Humilis Var. Tristis
- Salix humilis Marsh. var. rigidiuscula (Anderss.) B.L. Robins. & Fern. - >>salix Humilis Var. Humilis
- Salix humilis Marsh. var. tristis (Ait.) Griggs - Prairie Willow
- Salix humillima Anderss. - >>salix Arbusculoides
- Salix humillima Anderss. var. puberula (Anderss.) Anderss. - >>salix Arbusculoides
- Salix hutchinsii Skan
- Salix idahoensis (Ball) Rydb. - >>salix Wolfii
- Salix incana Schrank - >>salix Elaeagnos
- Salix interior Rowlee var. angustissima (Anderss.) Dayton - >>salix Exigua
- Salix interior Rowlee var. exterior Fern. - >>salix Interior
- Salix interior Rowlee var. luteosericea (Rydb.) Schneid. - >>salix Exigua
- Salix interior Rowlee var. pedicellata (Anderss.) Ball - >>salix Interior
- Salix interior Rowlee var. wheeleri Rowlee - >>salix Interior
- Salix irrorata Anderss. - Dewystem Willow
- Salix ivigtutiana Lundstr. - >>salix Uva-ursi
- Salix japonica
- Salix jepsonii Schneid. - Jepson's Willow
- Salix kamerunensis Seemen
- Salix kobayashii Kimura - >>salix Glauca Ssp. Glauca Var. Glauca
- Salix koriyanagi
- Salix koriyanagi Kimura ex Goerz - Kori-yanagi
- Salix L. - Willow
- Salix labradorica Rydb. var. pumila Nutt. - >>salix Argyrocarpa
- Salix laevigata Bebb - Red Willow
- Salix laevigata Bebb var. angustifolia Bebb ex Rothrock - >>salix Laevigata
- Salix laevigata Bebb var. araquipa (Jepson) Ball - >>salix Laevigata
- Salix laevigata Bebb var. congesta Bebb ex Rothrock - >>salix Laevigata
- Salix lanata - Woolly Willow
- Salix lanata L. ssp. calcicola (Fern. & Wieg.) Hultén - >>salix Calcicola
- Salix lanata L. ssp. richardsonii (Hook.) Skvort. - >>salix Richardsonii
- Salix lancifolia Anderss. - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra - Yellow Willow
- Salix lasiandra Benth. - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra Benth. ssp. caudata (Nutt.) E. Murr. - >>salix Lucida Ssp. Caudata
- Salix lasiandra Benth. var. abramsii Ball - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra Benth. var. caudata (Nutt.) Sudworth - >>salix Lucida Ssp. Caudata
- Salix lasiandra Benth. var. fendleriana (Anderss.) Bebb - >>salix Lucida Ssp. Caudata
- Salix lasiandra Benth. var. lancifolia (Anderss.) Bebb - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra Benth. var. lyallii Sarg. - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra Benth. var. macrophylla (Anderss.) Little - >>salix Lucida Ssp. Lasiandra
- Salix lasiandra Benth. var. recomponens Raup - >>salix Lucida Ssp. Lasiandra
- Salix lasiolepis - Pacific Willow
- Salix lasiolepis Benth. - Arroyo Willow
- Salix lasiolepis Benth. var. bakeri (von Seem.) Ball - >>salix Lasiolepis Var. Lasiolepis
- Salix lasiolepis Benth. var. bigelovii (Torr.) Bebb - Bigelow's Willow
- Salix lasiolepis Benth. var. bracelinae Ball - >>salix Lasiolepis Var. Lasiolepis
- Salix lasiolepis Benth. var. fallax Bebb - >>salix Lasiolepis Var. Lasiolepis
- Salix lasiolepis Benth. var. lasiolepis - Arroyo Willow
- Salix lasiolepis Benth. var. nivaria Jepson - >>salix Lasiolepis Var. Lasiolepis
- Salix lasiolepis Benth. var. sandbergii (Rydb.) Ball - >>salix Lasiolepis Var. Lasiolepis
- Salix ledermannii Seemen
- Salix leiocarpa (Cham.) Coville - >>salix Rotundifolia Ssp. Rotundifolia
- Salix leiolepis Fern. - >>salix Vestita
- Salix lemmonii Bebb - Lemmon's Willow
- Salix lemmonii Bebb var. austinae (Bebb) Schneid. - >>salix Lemmonii
- Salix lemmonii Bebb var. macrostachya Bebb - >>salix Lemmonii
- Salix lemmonii Bebb var. melanopsis Bebb - >>salix Lemmonii
- Salix lemmonii Bebb var. sphaerostachya Bebb - >>salix Lemmonii
- Salix ligulifolia (Ball) Ball ex Schneid. - Strapleaf Willow
- Salix ligustrina Michx. f. - >>salix Nigra
- Salix linearifolia Rydb. - >>salix Exigua
- Salix lingulata Anderss. - >>salix Myrtillifolia
- Salix livida Wahlenb. var. occidentalis (Anderss.) Gray - >>salix Bebbiana
- Salix livida Wahlenb. var. rostrata (Richards.) Dippel - >>salix Bebbiana
- Salix longifolia Muhl. non Lam. - >>salix Interior
- Salix longifolia Muhl. var. argophylla (Nutt.) Anderss. - >>salix Exigua
- Salix longifolia Muhl. var. exigua (Nutt.) Bebb - >>salix Exigua
- Salix longifolia Muhl. var. interior (Rowlee) M.E. Jones - >>salix Interior
- Salix longifolia Muhl. var. opaca Anderss. - >>salix Exigua
- Salix longifolia Muhl. var. pedicellata Anderss. - >>salix Interior
- Salix longifolia Muhl. var. sericans Nees - >>salix Interior
- Salix longifolia Muhl. var. sessilifolia (Nutt.) M.E. Jones - >>salix Sessilifolia
- Salix longifolia Muhl. var. tenerrima Henderson - >>salix Melanopsis
- Salix longifolia Muhl. var. wheeleri (Rowlee) Schneid. - >>salix Interior
- Salix longipes Shuttlw. ex Anderss. - >>salix Caroliniana
- Salix longipes Shuttlw. ex Anderss. var. pubescens Anderss. - >>salix Caroliniana
- Salix longipes Shuttlw. ex Anderss. var. venulosa (Anderss.) Schneid. - >>salix Caroliniana
- Salix longipes Shuttlw. ex Anderss. var. wardii (Bebb) Schneid. - >>salix Caroliniana
- Salix longirostris Michx. - >>salix Humilis Var. Tristis
- Salix longistylis Rydb. - >>salix Alaxensis Var. Longistylis
- Salix lucida - Shining Willow
- Salix lucida Muhl. - Shining Willow
- Salix lucida Muhl. ssp. caudata (Nutt.) E. Murr. - Greenleaf Willow
- Salix lucida Muhl. ssp. lucida - Shining Willow
- Salix lucida Muhl. var. angustifolia (Anderss.) Anderss. - >>salix Lucida Ssp. Lucida
- Salix lucida Muhl. var. intonsa Fern. - >>salix Lucida Ssp. Lucida
- Salix lucida Muhl. var. latifolia (Anderss.) Anderss. - >>salix Lucida Ssp. Lucida
- Salix lucida Muhl. var. macrophylla Anderss. - >>salix Lucida Ssp. Lasiandra
- Salix lucida Muhl. var. ovatifolia Anderss. - >>salix Lucida Ssp. Lucida
- Salix lucida Muhl. var. serissima Bailey - >>salix Serissima
- Salix ludoviciana Raf. - >>salix Nigra
- Salix lutea Nutt. - Yellow Willow
- Salix lutea Nutt. var. desolata E.H. Kelso - >>salix Lutea
- Salix lutea Nutt. var. famelica Ball - >>salix Lutea
- Salix lutea Nutt. var. ligulifolia Ball - >>salix Ligulifolia
- Salix lutea Nutt. var. nivaria Jepson - >>salix Lasiolepis Var. Lasiolepis
- Salix lutea Nutt. var. platyphylla Ball - >>salix Lutea
- Salix lutea Nutt. var. watsonii (Bebb) Jepson - >>salix Lutea
- Salix luteosericea Rydb. - >>salix Exigua
- Salix lyallii (Sarg.) Heller - >>salix Lucida Ssp. Lasiandra
- Salix maccalliana Rowlee - Mccalla's Willow
- Salix mackenzieana (Hook.) Barratt ex Anderss. - >>salix Prolixa
- Salix mackenzieana (Hook.) Barratt ex Anderss. var. macrogemma Ball - >>salix Prolixa
- Salix macrocarpa Nutt. - >>salix Geyeriana
- Salix macrocarpa Nutt. var. argentea Bebb - >>salix Geyeriana
- Salix macrostachya Nutt. - >>salix Sessilifolia
- Salix macrostachya Nutt. var. cusickii Rowlee - >>salix Sessilifolia
- Salix macrostachya Nutt. var. leucodendroides Rowlee - >>salix Exigua
- Salix malacophylla Nutt. ex Ball - >>salix Exigua
- Salix matsudana Koidzumi - Corkscrew Willow
- Salix medenii Boiss.
- Salix melanopsis Nutt. - Dusky Willow
- Salix melanopsis Nutt. var. bolanderiana (Rowlee) Schneid. - >>salix Melanopsis
- Salix melanopsis Nutt. var. gracilipes Ball - >>salix Melanopsis
- Salix melanopsis Nutt. var. kronkheittii L. Kelso - >>salix Melanopsis
- Salix melanopsis Nutt. var. tenerrima (Henderson) Ball - >>salix Melanopsis
- Salix meleina (J.K. Henry) G.N. Jones - >>salix Geyeriana
- Salix missouriensis Bebb - >>salix Eriocephala
- Salix miyabeana
- Salix monica Bebb - >>salix Planifolia
- Salix monochroma Ball - Onecolor Willow
- Salix monticola Bebb - Park Willow
- Salix monticola Bebb var. neomexicana E.H. Kelso - >>salix Monticola
- Salix mucronata Thunb. subsp. capensis (Thunb.) Immelman
- Salix mucronata Thunb. subsp. hirsuta (Thunb.) Immelman
- Salix mucronata Thunb. subsp. mucronata
- Salix mucronata Thunb. subsp. mucronata Thunb.
- Salix mucronata Thunb. subsp. subserrata (Willd.) R.H.Archer & Jordaan
- Salix mucronata Thunb. subsp. wilmsii (Seemen) Immelman
- Salix mucronata Thunb. subsp. woodii (Seemen) Immelman
- Salix mucronata Thunb. var. caffra Burtt Davy
- Salix mucronata Thunb. var. integra Burtt Davy
- Salix muehlenbergiana Willd. - >>salix Humilis Var. Tristis
- Salix muehlenbergiana Willd. var. angustifolia Barratt - >>salix Humilis Var. Humilis
- Salix muehlenbergiana Willd. var. grandifolia Barratt - >>salix Humilis Var. Humilis
- Salix muriei Hultén - >>salix Niphoclada
- Salix myricoides Muhl. - Bayberry Willow
- Salix myricoides Muhl. var. albovestita (Ball) Dorn - Bayberry Willow
- Salix myricoides Muhl. var. angustata (Pursh) Dippel - >>salix Eriocephala
- Salix myricoides Muhl. var. cordata (Muhl.) Dippel - >>salix Eriocephala
- Salix myricoides Muhl. var. myricoides - Bayberry Willow
- Salix myricoides Muhl. var. rigida (Muhl.) Dippel - >>salix Eriocephala
- Salix myrsinites L. var. curtiflora Anderss. - >>salix Myrtillifolia
- Salix myrsinites L. var. parvifolia Lange - >>salix Uva-ursi
- Salix myrtillifolia Anderss. - Blueberry Willow
- Salix myrtillifolia Anderss. var. cordata (Anderss.) Dorn - >>salix Pseudomyrsinites
- Salix myrtillifolia Anderss. var. curtiflora (Anderss.) Bebb ex Rose - >>salix Myrtillifolia
- Salix myrtillifolia Anderss. var. curtiflora auct. non (Anderss.) Bebb ex Rose - >>salix Boothii
- Salix myrtillifolia Anderss. var. lingulata (Anderss.) Ball - >>salix Myrtillifolia
- Salix myrtillifolia Anderss. var. pseudomyrsinites (Anderss.) Ball ex Hultén - >>salix Pseudomyrsinites
- Salix myrtillifolia auct. non Anderss. - >>salix Boothii
- Salix myrtilloides L. var. hypoglauca (Fern.) Ball - >>salix Pedicellaris
- Salix myrtilloides L. var. pedicellaris (Pursh) Anderss. - >>salix Pedicellaris
- Salix nelsonii Ball - >>salix Planifolia
- Salix neoforbesii Toepffer - >>salix Petiolaris
- Salix nevadensis S. Wats. - >>salix Exigua
- Salix nigerica Skan
- Salix nigra - Black Willow
- Salix nigra Marsh. var. altissima Sarg. - >>salix Nigra
- Salix nigra Marsh. var. amygdaloides (Anderss.) Anderss. - >>salix Amygdaloides
- Salix nigra Marsh. var. brevifolia Anderss. - >>salix Nigra
- Salix nigra Marsh. var. brevijulis Anderss. - >>salix Nigra
- Salix nigra Marsh. var. falcata (Pursh) Torr. - >>salix Nigra
- Salix nigra Marsh. var. lindheimeri Schneid. - >>salix Nigra
- Salix nigra Marsh. var. longifolia Anderss. - >>salix Nigra
- Salix nigra Marsh. var. longipes (Shuttlw. ex Anderss.) Bebb - >>salix Caroliniana
- Salix nigra Marsh. var. marginata (C.F.H. Wimmer ex Anderss.) Anderss. - >>salix Nigra
- Salix nigra Marsh. var. vallicola Dudley - >>salix Gooddingii
- Salix nigra Marsh. var. wardii Bebb - >>salix Caroliniana
- Salix nigra Marsh. var. wrightii (Anderss.) Anderss. - >>salix Amygdaloides
- Salix niphoclada Rydb. - Barrenground Willow
- Salix niphoclada Rydb. var. fullertonensis (Schneid.) Raup - >>salix Niphoclada
- Salix niphoclada Rydb. var. mexiae (Ball) Hultén - >>salix Niphoclada
- Salix niphoclada Rydb. var. muriei (Hultén) Raup - >>salix Niphoclada
- Salix nipponica
- Salix nivalis Hook. - Snow Willow
- Salix nivalis Hook. var. saximontana (Rydb.) Schneid. - >>salix Nivalis
- Salix novae-angliae Anderss. var. myrtillifolia (Anderss.) Anderss. - >>salix Myrtillifolia
- Salix novae-angliae Anderss. var. pseudocordata Anderss. - >>salix Myrtillifolia
- Salix novae-angliae Anderss. var. pseudomyrsinites (Anderss.) Anderss. - >>salix Pseudomyrsinites
- Salix novae-angliae auct. non Anderss. - >>salix Pseudomyrsinites
- Salix novae-angliae auct. non Anderss. - >>salix Boothii
- Salix nudescens Rydb. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix nummularia Anderss. - Barren Ground Willow
- Salix nummularia Anderss. ssp. tundricola (Schljak.) A.& D. Löve - >>salix Nummularia
- Salix nuttallii Sarg. - >>salix Scouleriana
- Salix nuttallii Sarg. var. capreoides (Anderss.) Sarg. - >>salix Scouleriana
- Salix obovata Pursh - >>salix Pellita
- Salix occidentalis Bosc ex K. Koch var. longipes (Shuttlw. ex Anderss.) Bebb - >>salix Caroliniana
- Salix occidentalis Bosc ex K. Koch, non Walt. - >>salix Caroliniana
- Salix occidentalis Walt. - >>salix Humilis Var. Tristis
- Salix octandra A.Rich.
- Salix oleifolia Sm., non Vill. - >>salix Cinerea Ssp. Oleifolia
- Salix orbicularis Anderss. - >>salix Reticulata Ssp. Reticulata
- Salix orestera Schneid. - Sierra Willow
- Salix ormsbyensis von Seem. - >>salix Lutea
- Salix ovalifolia Trautv. - Oval-leaf Willow
- Salix ovalifolia Trautv. var. arctolitoralis (Hultén) Argus - Arctic Seashore Willow
- Salix ovalifolia Trautv. var. camdensis Schneid. - >>salix Ovalifolia Var. Ovalifolia
- Salix ovalifolia Trautv. var. cyclophylla (Rydb.) Ball - Oval-leaf Willow
- Salix ovalifolia Trautv. var. glacialis (Anderss.) Argus - Glacial Willow
- Salix ovalifolia Trautv. var. ovalifolia - Oval-leaf Willow
- Salix pachnophora Rydb. - >>salix Drummondiana
- Salix padifolia Rydb., non Anderss. - >>salix Monticola
- Salix padophylla Rydb. - >>salix Monticola
- Salix paleoneura Rydb. - >>salix Phlebophylla
- Salix pallasii Anderss. - >>salix Arctica
- Salix pallasii Anderss. var. crassijulis (Trautv.) Anderss. - >>salix Arctica
- Salix parishiana Rowlee - >>salix Exigua
- Salix parksiana Ball - >>salix Melanopsis
- Salix pedicellaris Pursh - Bog Willow
- Salix pedicellaris Pursh var. athabascensis (Raup) Boivin - >>salix Athabascensis
- Salix pedicellaris Pursh var. hypoglauca Fern. - >>salix Pedicellaris
- Salix pedicellaris Pursh var. tenuescens Fern. - >>salix Pedicellaris
- Salix pedicellata Desf.
- Salix pellita (Anderss.) Anderss. ex Schneid. - Satiny Willow
- Salix pellita (Anderss.) Anderss. ex Schneid. var. angustifolia (Bebb) Boivin - >>salix Jepsonii
- Salix pendulina Wenderoth var. blanda (Anderss.) Meikle ex auct. ined. - >>salix Pendulina
- Salix pendulina Wenderoth var. elegantissima (K. Koch) Meikle - >>salix Pendulina
- Salix pennata Ball - >>salix Planifolia
- Salix pensylvanica Forbes - >>salix Sericea
- Salix pentandra - Bay Willow
- Salix pentandra L. - Laurel Willow
- Salix pentandra L. var. caudata Nutt. - >>salix Lucida Ssp. Caudata
- Salix pentandra L. var. lucida (Muhl.) Kuntze - >>salix Lucida Ssp. Lucida
- Salix perrostrata Rydb. - >>salix Bebbiana
- Salix petiolaris - Slender Willow
- Salix petiolaris Sm. var. angustifolia Anderss. - >>salix Petiolaris
- Salix petiolaris Sm. var. gracilis (Anderss.) Anderss. - >>salix Petiolaris
- Salix petiolaris Sm. var. grisea (Willd.) Torr. - >>salix Sericea
- Salix petiolaris Sm. var. rosmarinoides (Anderss.) Schneid. - >>salix Petiolaris
- Salix petiolaris Sm. var. sericea (Marsh.) Anderss. - >>salix Sericea
- Salix petiolaris Sm. var. subsericea Anderss. - >>salix Petiolaris
- Salix petrophila Rydb. - Alpine Willow
- Salix petrophila Rydb. var. caespitosa (Kennedy) Schneid. - >>salix Petrophila
- Salix phlebophylla Anderss. - Skeletonleaf Willow
- Salix phylicifolia L. ssp. planifolia (Pursh) Hiitonen - >>salix Planifolia
- Salix phylicifolia L. ssp. pulchra (Cham.) Hultén - >>salix Pulchra
- Salix phylicifolia L. var. monica (Bebb) Jepson - >>salix Planifolia
- Salix phylicifolia L. var. pennata (Ball) Cronq. - >>salix Planifolia
- Salix phylicifolia L. var. subglauca (Anderss.) Boivin - >>salix Pulchra
- Salix phylicoides Anderss. - >>salix Pulchra
- Salix piperi - Dune Willow
- Salix piperi Bebb - >>salix Hookeriana
- Salix pitcheriana Barratt - >>salix Caroliniana
- Salix planifolia Pursh - Diamondleaf Willow
- Salix planifolia Pursh ssp. pulchra (Cham.) Argus - >>salix Pulchra
- Salix planifolia Pursh var. monica (Bebb) Schneid. - >>salix Planifolia
- Salix planifolia Pursh var. nelsonii (Ball) Ball ex E.C. Sm. - >>salix Planifolia
- Salix planifolia Pursh var. pennata (Ball) Ball ex Dutilly, Lepage & Daman - >>salix Planifolia
- Salix planifolia Pursh var. yukonensis (Schneid.) Argus - >>salix Pulchra
- Salix polaris Wahlenb. - Polar Willow
- Salix polaris Wahlenb. ssp. pseudopolaris (Flod.) Hultén - >>salix Polaris
- Salix polaris Wahlenb. var. glabrata Hultén - >>salix Polaris
- Salix polaris Wahlenb. var. leiocarpa Cham. - >>salix Rotundifolia Ssp. Rotundifolia
- Salix polaris Wahlenb. var. selwynensis Raup - >>salix Polaris
- Salix prinoides Pursh - >>salix Discolor
- Salix prolixa Anderss. - Mackenzie's Willow
- Salix pseudo-matsudana
- Salix pseudocordata (Anderss.) Rydb. - >>salix Myrtillifolia
- Salix pseudocordata (Anderss.) Rydb. var. aequalis (Anderss.) Ball ex Schneid. - >>salix Boothii
- Salix pseudocordata (Anderss.) Rydb. var. cordata (Anderss.) Ball - >>salix Pseudomyrsinites
- Salix pseudocordata auct. non (Anderss.) Rydb. - >>salix Boothii
- Salix pseudolapponum von Seem. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix pseudolapponum von Seem. var. kenosha L. Kelso - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix pseudolapponum von Seem. var. subincurva E.H. Kelso - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix pseudomonticola Ball - False Mountain Willow
- Salix pseudomonticola Ball var. padophylla (Rydb.) Ball - >>salix Monticola
- Salix pseudomyrsinites Anderss. - Firmleaf Willow
- Salix pseudomyrsinites Anderss. var. aequalis (Anderss.) Anderss. ex Ball - >>salix Boothii
- Salix pseudomyrsinites auct. non Anderss. - >>salix Boothii
- Salix pseudopolaris Flod. - >>salix Polaris
- Salix pulchra - Tealeaf Willow
- Salix pulchra Cham. - Tealeaf Willow
- Salix pulchra Cham. var. looffiae Ball - >>salix Pulchra
- Salix pulchra Cham. var. palmeri Ball - >>salix Pulchra
- Salix pulchra Cham. var. yukonensis Schneid. - >>salix Pulchra
- Salix purpurea - Purple Osier
- Salix purpurea L. - Purpleosier Willow
- Salix purpurea lambertiana - Purple Osier
- Salix purshiana Spreng. - >>salix Nigra
- Salix pychnocarpa Anderss. - >>salix Planifolia
- Salix pyrifolia Anderss. - Balsam Willow
- Salix pyrifolia Anderss. var. lanceolata (Bebb) Fern. - >>salix Pyrifolia
- Salix pyrolifolia Anderss. var. hoyeriana (Dieck) Dippel - >>salix Barclayi
- Salix recurvata Pursh - >>salix Humilis Var. Tristis
- Salix regelii Anderss. - >>salix Barclayi
- Salix reticulata L. - Netleaf Willow
- Salix reticulata L. ssp. glabellicarpa Argus - Netleaf Willow
- Salix reticulata L. ssp. nivalis (Hook.) A.& D. Löve & Kapoor - >>salix Nivalis
- Salix reticulata L. ssp. orbicularis (Anderss.) Flod. - >>salix Reticulata Ssp. Reticulata
- Salix reticulata L. ssp. reticulata - Netleaf Willow
- Salix reticulata L. var. gigantifolia Ball - >>salix Reticulata Ssp. Reticulata
- Salix reticulata L. var. glabra Trautv. - >>salix Reticulata Ssp. Reticulata
- Salix reticulata L. var. nana (Hook.) Anderss. - >>salix Nivalis
- Salix reticulata L. var. nivalis (Hook.) Anderss. - >>salix Nivalis
- Salix reticulata L. var. orbicularis (Anderss.) Komarov - >>salix Reticulata Ssp. Reticulata
- Salix reticulata L. var. saximontana (Rydb.) L. Kelso - >>salix Nivalis
- Salix reticulata L. var. semicalva Fern. - >>salix Reticulata Ssp. Reticulata
- Salix reticulata L. var. vestita (Pursh) Anderss. - >>salix Vestita
- Salix richardsonii Hook. - Richardson's Willow
- Salix richardsonii Hook. var. macouniana Bebb - >>salix Calcicola
- Salix richardsonii Hook. var. mckeandii Polunin - >>salix Richardsonii
- Salix rigida Muhl. - >>salix Eriocephala
- Salix rigida Muhl. ssp. ligulifolia (Ball) E. Murr. - >>salix Ligulifolia
- Salix rigida Muhl. ssp. mackenzieana (Hook.) E. Murr. - >>salix Prolixa
- Salix rigida Muhl. var. angustata (Pursh) Fern. - >>salix Eriocephala
- Salix rigida Muhl. var. mackenzieana (Hook.) Cronq. - >>salix Prolixa
- Salix rigida Muhl. var. macrogemma (Ball) Cronq. - >>salix Prolixa
- Salix rigida Muhl. var. vestita (Anderss.) Ball - >>salix Eriocephala
- Salix rigida Muhl. var. watsonii (Bebb) Cronq. - >>salix Lutea
- Salix rostrata Richards. var. capreifolia Fern. - >>salix Bebbiana
- Salix rostrata Richards. var. luxurians Fern. - >>salix Bebbiana
- Salix rostrata Richards. var. perrostrata (Rydb.) Fern. - >>salix Bebbiana
- Salix rostrata Richards. var. projecta Fern. - >>salix Bebbiana
- Salix rostrata Richards., non Thuill. - >>salix Bebbiana
- Salix rotundata Rydb. ex Macoun - >>salix Ovalifolia Var. Cyclophylla
- Salix rotundifolia Nutt., non Trautv. - >>salix Tweedyi
- Salix rotundifolia Trautv. - Least Willow
- Salix rotundifolia Trautv. ssp. dodgeana (Rydb.) Argus - Timberline Willow
- Salix rotundifolia Trautv. ssp. rotundifolia - Least Willow
- Salix rotundifolia Trautv. var. dodgeana (Rydb.) E. Murr. - >>salix Rotundifolia Ssp. Dodgeana
- Salix rubra Richards., non Huds. - >>salix Interior
- Salix safsaf Forssk. ex Trautv.
- Salix salomonii hort. - >>salix Sepulcralis
- Salix sandbergii Rydb. - >>salix Lasiolepis Var. Lasiolepis
- Salix saskatchevana von Seem. - >>salix Arbusculoides
- Salix sawatchicola L. Kelso - >>salix Monticola
- Salix saximontana Rydb. - >>salix Nivalis
- Salix schwerinii
- Salix scouleriana - Scouler's Willow
- Salix scouleriana Barratt ex Hook. - Scouler's Willow
- Salix scouleriana Barratt ex Hook. var. brachystachys (Benth.) M.E. Jones - >>salix Scouleriana
- Salix scouleriana Barratt ex Hook. var. coetanea Ball - >>salix Scouleriana
- Salix scouleriana Barratt ex Hook. var. crassijulis (Anderss.) Schneid. - >>salix Scouleriana
- Salix scouleriana Barratt ex Hook. var. flavescens (Nutt.) J.K. Henry - >>salix Scouleriana
- Salix scouleriana Barratt ex Hook. var. poikila Schneid. - >>salix Scouleriana
- Salix scouleriana Barratt ex Hook. var. thompsonii Ball - >>salix Scouleriana
- Salix seemanii Rydb. - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix sensitiva Barratt - >>salix Discolor
- Salix sericea Marsh. - Silky Willow
- Salix sericea Marsh. var. subsericea (Anderss.) Rydb. - >>salix Petiolaris
- Salix seriocarpa Buser - >>salix Pellita
- Salix serissima (Bailey) Fern. - Autumn Willow
- Salix sessilifolia Nutt. - Northwest Sandbar Willow
- Salix sessilifolia Nutt. var. hindsiana (Benth.) Anderss. - >>salix Exigua
- Salix sessilifolia Nutt. var. leucodendroides (Rowlee) Schneid. - >>salix Exigua
- Salix sessilifolia Nutt. var. vancouverensis Brayshaw - >>salix Melanopsis
- Salix sessilifolia Nutt. var. villosa Anderss. - >>salix Sessilifolia
- Salix setchelliana Ball - Setchell's Willow
- Salix sitchensis - Sitka Wilow
- Salix sitchensis Sanson ex Bong. - Sitka Willow
- Salix sitchensis Sanson ex Bong. var. angustifolia Bebb - >>salix Jepsonii
- Salix sitchensis Sanson ex Bong. var. congesta (Anderss.) Anderss. - >>salix Sitchensis
- Salix sitchensis Sanson ex Bong. var. denudata (Anderss.) Anderss. - >>salix Sitchensis
- Salix sitchensis Sanson ex Bong. var. parviflora (Jepson) Jepson - >>salix Sitchensis
- Salix sitchensis Sanson ex Bong. var. pellita (Anderss.) Jepson - >>salix Pellita
- Salix sitchensis Sanson ex Bong. var. ralphiana (Jepson) Jepson - >>salix Sitchensis
- Salix speciosa Hook. & Arn. var. alaxensis Anderss. - >>salix Alaxensis Var. Alaxensis
- Salix speciosa Hook. & Arn., non Host nec Nutt. - >>salix Alaxensis Var. Alaxensis
- Salix speciosa Nutt., non Host nec Hook. & Arn. - >>salix Lucida Ssp. Lasiandra
- Salix sphenophylla Skvort. - Wedgeleaf Willow
- Salix sphenophylla Skvort. ssp. pseudotorulosa Skvort. - >>salix Sphenophylla
- Salix squamata Rydb. - >>salix Discolor
- Salix stagnalis Nutt. - >>salix Scouleriana
- Salix starkeana Willd. ssp. bebbiana (Sarg.) Youngberg - >>salix Bebbiana
- Salix stenophylla Rydb. - >>salix Exigua
- Salix stolonifera Coville - Sprouting Leaf Willow
- Salix stricta (Anderss.) Rydb. - >>salix Brachycarpa
- Salix subcaerulea Piper - >>salix Drummondiana
- Salix subcordata Anderss. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix subserrata Willd.
- Salix subserrata Willd. var. cyathipoda (Andersson) Cufod.
- Salix suksdorfii Gandog. - >>salix Lasiolepis Var. Lasiolepis
- Salix sungkianica
- Salix syrticola Fern. - >>salix Cordata
- Salix taxifolia - Yew-leaf Willow
- Salix taxifolia Kunth - Yewleaf Willow
- Salix taxifolia Kunth var. lejocarpa Anderss. - >>salix Taxifolia
- Salix taxifolia Kunth var. limitanea I.M. Johnston - >>salix Taxifolia
- Salix taxifolia Kunth var. seriocarpa Anderss. - >>salix Taxifolia
- Salix tenera Anderss. - >>salix Cascadensis
- Salix tenerrima (Henderson) Heller - >>salix Melanopsis
- Salix thurberi Rowlee - >>salix Exigua
- Salix torreyana Barratt - >>salix Eriocephala
- Salix tortulosa Trautv. - >>salix Arctica
- Salix toumeyi Britt. & Shafer - >>salix Bonplandiana
- Salix tracyi Ball - >>salix Lasiolepis Var. Lasiolepis
- Salix triandra - Almond-leaved Willow
- Salix tristis Ait. - >>salix Humilis Var. Tristis
- Salix tristis Ait. var. glabrata (Anderss.) Anderss. - >>salix Humilis Var. Humilis
- Salix tristis Ait. var. longifolia Anderss. - >>salix Humilis Var. Tristis
- Salix tristis Ait. var. microphylla Anderss. - >>salix Humilis Var. Tristis
- Salix tristis Ait. var. momadelphia Barratt - >>salix Humilis Var. Tristis
- Salix tundricola Schljak. - >>salix Nummularia
- Salix tweedyi (Bebb ex Rose) Ball - Tweedy's Willow
- Salix unalaschensis Cham. - >>salix Ovalifolia Var. Ovalifolia
- Salix uva-ursi Pursh - Bearberry Willow
- Salix vagans Hook. f. ex Anderss. var. occidentalis Anderss. - >>salix Bebbiana
- Salix vagans Hook. f. ex Anderss. var. rostrata (Richards.) Anderss. - >>salix Bebbiana
- Salix vallicola (Dudley) Britt. & Shafer - >>salix Gooddingii
- Salix venusta Anderss. - >>salix Nivalis
- Salix vestita Pursh - Rock Willow
- Salix vestita Pursh ssp. leiolepis (Fern.) Argus - >>salix Vestita
- Salix vestita Pursh var. erecta Anderss. - >>salix Vestita
- Salix vestita Pursh var. humilior Anderss. - >>salix Vestita
- Salix vestita Pursh var. nana Hook. - >>salix Nivalis
- Salix vestita Pursh var. psilophylla Fern. & St. John - >>salix Vestita
- Salix villosa D. Don ex Hook. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix villosa D. Don ex Hook. var. acutifolia Hook. - >>salix Glauca Ssp. Glauca Var. Acutifolia
- Salix viminalis - Osier
- Salix viminalis L. - Basket Willow
- Salix vitellina L. - >>salix Alba
- Salix wallichiana
- Salix walpolei (Coville & Ball) Ball - >>salix Hastata
- Salix wardii (Bebb) Bebb - >>salix Caroliniana
- Salix watsonii (Bebb) Rydb. - >>salix Lutea
- Salix wheeleri (Rowlee) Rydb. - >>salix Interior
- Salix wilmsii Seemen
- Salix wolfii Bebb - Wolf's Willow
- Salix wolfii Bebb ssp. idahoensis (Ball) E. Murr. - >>salix Wolfii
- Salix wolfii Bebb var. idahoensis Ball - >>salix Wolfii
- Salix wolfii Bebb var. pseudolapponum (von Seem.) M.E. Jones - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix woodii Seemen
- Salix woodii Seemen var. wilmsii (Seemen) Skan
- Salix wrightii Anderss. - >>salix Amygdaloides
- Salix wyomingensis Rydb. - >>salix Glauca Ssp. Glauca Var. Villosa
- Salix x mollisima hippophaeifolia
- Salix x mollisima undulata
- Salix x rubra
- Salix x smithiana
- Salix ×bebbii Gandog.
- Salix ×beschelii Boivin
- Salix ×blanda Anderss. (pro sp.) - >>salix Pendulina
- Salix ×conifera Wangenh. (pro sp.)
- Salix ×cottetii Jos. Kern. - Cottet Willow
- Salix ×cryptodonta Fern. (pro sp.)
- Salix ×dieckiana Suksdorf (pro sp.)
- Salix ×ehrhartiana Sm. (pro sp.)
- Salix ×glatfelteri Schneid.
- Salix ×grayi Schneid.
- Salix ×jesupii Fern. - >>salix Ehrhartiana
- Salix ×peasei Fern. (pro sp.)
- Salix ×princeps-ourayi L. Kelso
- Salix ×rubella Bebb
- Salix ×rubens Schrank (pro sp.) - Hybrid Crack Willow
- Salix ×sepulcralis Simonkai var. chrysocoma (Dode) Meikle - >>salix Sepulcralis
- Salix ×smithiana Willd. (pro sp.) - Silky-leaf Osier
- Salix ×solheimii E.H. Kelso
- Salix ×subsericea (Anderss.) Schneid. - >>salix Petiolaris
- Salix ×waghornei Rydb. (pro sp.)
- Tsavo ilicifolia (Engl.) Jarm.