''Salix humboldtiana'', called Humboldt's willow, is a tree species of willow native to North and South America, growing along watercourses. Some authorities consider it a synonym of ''

Salix chilensis ''Salix chilensis'', the Chilean pencil willow, is a species of willow native to Mexico, Central America and South America, described by Molina in 1782. Some authorities consider it conspecific with ''Salix humboldtiana'', which Willdenow C ...

'', which Molina described in 1782.

Willdenow Carl Ludwig Willdenow (22 August 1765 – 10 July 1812) was a German botanist, pharmacist, and plant taxonomist. He is considered one of the founders of phytogeography, the study of the geographic distribution of plants. Willdenow was al ...

described ''Salix humboldtiana'' in 1805.

Description

The species is evergreen or deciduous, depending on climate. It can grow up to 25 meters tall, with a narrow triangular or columnar crown shape. The trunk has a maximum d.b.h. of 80 cm and dark brown to gray fissured bark. Other characteristics are: narrow lanceolate leaves up to 15 cm long, with serrate margin and light green color, that in temperate climates, turn yellow in autumn; catkins 4–10 cm long; male flowers yellowish green, with an ovate-lanceolate bract, six stamens; and female flowers green.

Distribution and habitat

The natural range of ''Salix humboldtiana'' spans from central Mexico to southern Chile and Argentina, growing in areas with tropical, subtropical and temperate climate between near sea level to of elevation.

References

{{Taxonbar, from=Q2889020 Trees of Peru Trees of Argentina Trees of Chile Trees of Mexico Trees of Uruguay humboldtiana