Difference between revisions of "Salix rotundifolia var. rotundifolia"
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Latest revision as of 22:35, 5 November 2020
Plants 0.01–0.05 m. Leaves: petiole 0.5–2–4.6(–5.5) mm; largest medial blade 4.5–8–16.3 × 3–5.9–10.5 mm, 0.92–1.23–2.27(–2.53) times as long as wide. Catkins: staminate subglobose or stout, 9.5–18.5 × 5–12 mm, flowering branchlet 1–9 mm; pistillate: (3–)4–7–15 flowers, stout, subglobose, or globose, 13–35 × 6–17 mm, flowering branchlet 2–22 mm; floral bract hairs usually wavy, some straight, curly, or crinkled, exceeding bract by 0.32–0.71–1.25(–2.4) mm. Staminate flowers: abaxial nectary 0.5–0.6 mm. Pistillate flowers: abaxial nectary present or absent, oblong or narrowly oblong, 0.9–2 mm; stigmas slenderly or broadly cylindrical, 0.36–0.47–0.6 mm. Capsules 4–8.3 mm. 2n = 114.
Phenology: Flowering Jul-early Aug.
Habitat: Arctic-alpine, Dryas tundra and willow thickets along streams, sedge-grass tundra, sandy, saline coastal flats, beach cobbles, Empetrum-lichen heath on wet slopes, upland shrubby tundra, polygonal tundra and raised center polygons, snowbeds, scree and colluvial slopes, substrates from clay to coarse rubble, both calcareous limestone and acidic
Elevation: 0-2200 m
Distribution
N.W.T., Yukon, Alaska, e Asia (Chukotka, Russian Far East, Wrangel Island).
Discussion
Selected References
None.