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Salix melanopsis Nutt.
Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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  • Flora of North America

Associates · map
FamilyScientific name @ source (records)
Aphididae  Chaitophorus macrostachyae @ AMNH_PBI (1)
Cicadellidae  Idiocerus ( @ UKYL_TCN (3)
Dermateaceae  Marssonina @ BPI (1)
Melampsoraceae  Melampsora bigelowii @ BPI (10)

Melampsora paradoxa @ BPI (5)
Rhytismataceae  Rhytisma salicinum @ BPI (1)

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FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

21. Salix melanopsis Nuttall, N. Amer. Sylv. 1: 78, plate 21. 1842.

Dusky willow

Salix bolanderiana Rowlee; S. exigua Nuttall var. gracilipes (C. R. Ball) Cronquist; S. exigua subsp. melanopsis (Nuttall) Cronquist; S. exigua var. tenerrima (L. F. Henderson) C. K. Schneider; S. fluviatilis Nuttall var. tenerrima (L. F. Henderson) Howell; S. longifolia Muhlenberg var. tenerrima L. F. Henderson; S. melanopsis var. bolanderiana (Rowlee) C. K. Schneider; S. melanopsis var. gracilipes C. R. Ball; S. melanopsis var. kronkheitii Kelso; S. melanopsis var. tenerrima (L. F. Henderson) C. R. Ball; S. parksiana C. R. Ball; S. sessilifolia Nuttall var. vancouverensis Brayshaw; S. tenerrima (L. F. Henderson) A. Heller

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.

Flowering early May-mid Jul. Riparian, floodplains, stream banks, subalpine meadows, coarse-textured substrates, silt; 600-3100 m; 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).

Updated: 2024-06-24 07:00:24 gmt
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