Salix melanopsis


N. Amer. Sylv. 1: 78, plate 21. 1842.

Common names: Dusky willow
Synonyms: Salix bolanderiana Rowlee Salix exigua var. gracilipes (C. R. Ball) Cronquist Salix exigua subsp. melanopsis (Nuttall) Cronquist Salix exigua var. tenerrima (L. F. Henderson) C. K. Schneider Salix fluviatilis var. tenerrima (L. F. Henderson) Howell Salix longifolia var. tenerrima L. F. Henderson Salix melanopsis var. bolanderiana (Rowlee) C. K. Schneider Salix melanopsis var. gracilipes C. R. Ball Salix melanopsis var. kronkheitii Kelso Salix melanopsis var. tenerrima (L. F. Henderson) C. R. Ball Salix parksiana Salix sessilifolia var. vancouverensis Brayshaw Salix tenerrima
Treatment appears in FNA Volume 7. Treatment on page 58. Mentioned on page 52, 56, 59, 60, 160.

Shrubs, 0.8–4 m. Stems: branches gray-brown or red-brown, glabrous or hairy; branchlets gray-brown to dark red-brown, glabrous, puberulent, densely long-silky, or villous to glabrescent. Leaves: stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones (apex acuminate); petiole 1.5–8 mm, glabrous adaxially; largest medial blade lorate, narrowly oblong, narrowly elliptic, narrowly oblanceolate, or linear, 30–133 × 5–20 mm, 3.4–8–15 times as long as wide, base cuneate or convex, margins flat, spinulose-serrulate or entire, apex acute, acuminate, or convex, abaxial surface glaucous or not, pilose, villous, or long-silky to glabrescent, hairs appressed or spreading, wavy, adaxial slightly glossy, villous to glabrescent; proximal blade margins entire or serrulate; juvenile blade reddish or yellowish green, densely villous abaxially. Catkins: staminate 18–48 × 5–13 mm, flowering branchlet 3–15 mm; pistillate moderately densely flowered, slender or stout, 22–58 × 4–9 mm, flowering branchlet 4–12 mm; floral bract (sometimes brown), 1.3–2.8 mm, apex rounded (sometimes truncate), entire or erose, abaxially hairy mainly proximally, hairs wavy. Staminate flowers: abaxial nectary 0.3–0.9 mm, adaxial nectary narrowly oblong, oblong, or flask-shaped, 0.4–1.2 mm, nectaries distinct; filaments densely hairy on proximal 1/2; anthers 0.55–0.7–0.9 mm. Pistillate flowers: adaxial nectary ovate, oblong, or flask-shaped, 0.4–1.1 mm, longer than stipe, nectaries distinct or connate and cup-shaped; stipe 0–0.7 mm; ovary obclavate or pyriform, glabrous, beak abruptly tapering to styles; ovules 13–22 per ovary; styles 0–0.14–0.5 mm; stigmas slenderly cylindrical or 2 plump lobes, 0.2–0.5 mm. Capsules 4–5 mm.

Phenology: Flowering early May-mid Jul.
Habitat: Riparian, floodplains, stream banks, subalpine meadows, coarse-textured substrates, silt
Elevation: 600-3100 m


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Alta., B.C., Calif., Colo., Idaho, Mont., Nev., Oreg., Wash., Wyo.


Salix fluviatilis Nuttall, long used for a Columbia River endemic (see 22. S. columbiana), is a rejected name.


Salix melanopsis forms natural hybrids with S. exigua var. exigua, S. sessilifolia, and S. sitchensis (R. D. Dorn 1998).

Selected References


Lower Taxa

... more about "Salix melanopsis"
George W. Argus +
Nuttall +
Longifoliae +
Dusky willow +
Alta. +, B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Wash. +  and Wyo. +
600-3100 m +
Riparian, floodplains, stream banks, subalpine meadows, coarse-textured substrates, silt +
Flowering early May-mid Jul. +
N. Amer. Sylv. +
Illustrated +  and Endemic +
Salix bolanderiana +, Salix exigua var. gracilipes +, Salix exigua subsp. melanopsis +, Salix exigua var. tenerrima +, Salix fluviatilis var. tenerrima +, Salix longifolia var. tenerrima +, Salix melanopsis var. bolanderiana +, Salix melanopsis var. gracilipes +, Salix melanopsis var. kronkheitii +, Salix melanopsis var. tenerrima +, Salix parksiana +, Salix sessilifolia var. vancouverensis +  and Salix tenerrima +
Salix melanopsis +
Salix subg. Longifoliae +
species +