Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Salix nigricans var. crassifolia (Schleich. ex J.Forbes) Wimm.
Salix nigricans var. firma Ser.
Salix nigricans var. lancifolia Wimm.
Salix nigricans var. parvifolia Ser.
Salix nigricans var. rupestris (Donn ex Sm.) Wimm.
Salix nigricans var. sericea Wimm.
Salix ovata Spreng.
Salix parietariifolia Host
Salix petraea G.Anderson ex J.Forbes
Salix proteifolia J.Forbes
Salix ramifusca J.Forbes
Salix rivalis Host
Salix rivularis J.Forbes
Salix rotundata J.Forbes
Salix rupestris Donn ex Sm.
Salix schleicheriana J.Forbes
Salix sordida J.Forbes
Salix stylaris Ser.
Salix tiliifolia Schleich. ex Spreng.
Salix vaudensis J.Forbes
Salix willdenoviana J.Forbes
Sokolofia rupestris (Donn ex Sm.) Raf.
Urnectis hirta (Sm.) Raf.
Vimen andersoniana (Sm.) Raf.
Vimen cotinifolia (Sm.) Raf.
Vimen forsteriana (Sm.) Raf.
Salix myrsinifolia, known as the dark-leaved willow or myrsine-leaved willow, is a species of willow native to Europe and Western Siberia. It forms a 2–5 m (6.6–16.4 ft) high shrub. In the north it often becomes a tree up to 8 m (26 ft) tall.