Salix melanopsis |
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dark sandbar willow, dusky willow |
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Habit | 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. |
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. |
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. |
Salix melanopsis |
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Phenology | Flowering early May-mid Jul. |
Habitat | Riparian, floodplains, stream banks, subalpine meadows, coarse-textured substrates, silt |
Elevation | 600-3100 m (2000-10200 ft) |
Distribution |
CA; CO; ID; MT; NV; OR; WA; WY; AB; BC
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Discussion | Salix fluviatilis Nuttall, long used for a Columbia River endemic (see 22. S. columbiana), is a rejected name. Hybrids: Salix melanopsis forms natural hybrids with S. exigua var. exigua, S. sessilifolia, and S. sitchensis (R. D. Dorn 1998). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 58. |
Parent taxa | Salicaceae > Salix > subg. Longifoliae |
Sibling taxa | |
Synonyms | S. bolanderiana, S. exigua var. gracilipes, S. exigua subsp. melanopsis, S. exigua var. tenerrima, S. fluviatilis var. tenerrima, S. longifolia var. tenerrima, S. melanopsis var. bolanderiana, S. melanopsis var. gracilipes, S. melanopsis var. kronkheitii, S. melanopsis var. tenerrima, S. parksiana, S. sessilifolia var. vancouverensis, S. tenerrima |
Name authority | Nuttall: N. Amer. Sylv. 1: 78, plate 21. (1842) |
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