Difference between revisions of "Salix lasiandra var. lasiandra"
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|genus=Salix | |genus=Salix | ||
|subgenus=Salix subg. Salix | |subgenus=Salix subg. Salix | ||
Latest revision as of 22:33, 5 November 2020
Leaves: stipules sometimes rudimentary on early ones, foliaceous on late ones, apex convex; petiole (2–)4–30 mm, with clusters of spherical or foliaceous glands distally; largest medial blade usually hypostomatous or hemiamphistomatous (rarely amphistomatous), narrowly oblong, very narrowly elliptic, narrowly elliptic, lanceolate, narrowly lanceolate, or oblanceolate, base convex to rounded, abaxial surface usually glaucous (rarely not glaucous), glabrous or glabrescent, hairs white, sometimes also ferruginous, straight or wavy (secondary veins protruding abaxially and adaxially). Catkins: staminate 21–78 × 9–14 mm, flowering branchlet 5–24 mm; pistillate moderately to very densely flowered, slender, stout, or subglobose, 18.5–103 × 6–17 mm, flowering branchlet 6–56 mm; floral bract 1.7–4 mm. Staminate flowers: abaxial nectary 0.4–0.6 mm, adaxial nectary 0.2–0.5 mm, nectaries distinct. Pistillate flowers: adaxial nectary 0.2–0.6 mm; stipe 0.8–2 mm; ovules 16–24 per ovary; styles 0.2–0.8 mm. 2n = 76.
Phenology: Flowering late Mar-early Jun.
Habitat: Thickets, silty, sandy to gravelly alluvium along streams
Elevation: 0-2700 m
Distribution
Alta., B.C., Man., N.W.T., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash.
Discussion
Hybrids:
Variety lasiandra forms natural hybrids with Salix eastwoodiae. Hybrids with S. gooddingii have been reported (C. K. Schneider 1921), but no convincing specimens have been seen.
Selected References
None.