Anemone richardsonii

Hooker

Fl. Bor.-Amer. 1: 6. 1829.

Common names: Yellow anemone anémone de Richardson
Illustrated
Synonyms: Anemone vahlii Hornemann
Treatment appears in FNA Volume 3.

Aerial shoots 5-30 cm, from rhizomes, rhizomes horizontal. Basal leaves 1, simple; petiole (0.8-)2-8(-12) cm; leaf blade reniform to ±orbiculate, (1-)1.5-3(-4) × 1.5-4 cm, base somewhat cordate, margins crenate to serrate ±throughout, apex acute to broadly acute, surfaces glabrous or ±villous, or abaxially glabrescent; segments primarily 3, rhombic; lateral segments unlobed or 1×-lobed; ultimate lobes 4-10(-15) mm wide. Inflorescences 1-flowered; peduncle puberulous; involucral bracts 2-3, 1-tiered, simple, ±similar to basal leaves, primarily rhombic, 1-3.5 cm, bases distinct, cuneate, margins crenate on distal 1/2, apex acute to narrowly acute, surfaces glabrous or ±villous, or abaxially glabrescent; segments 3, primarily rhombic; lateral segments unlobed, 2-10 mm wide. Flowers: sepals (4-)6(-8), yellow (rarely abaxially yellow, tinged blue, and adaxially yellow), elliptic, 8-15 × 4-10 mm, abaxially villous, especially proximally, adaxially glabrous; stamens 25-55. Heads of achenes loosely spheric; pedicel 3-20 cm. Achenes: body ovoid to oblong, 3-4 × ca. 1.5 mm, not winged, glabrous; beak recurved, 4-6 mm, glabrous. 2n=14.


Phenology: Flowering spring–summer (May–Aug).
Habitat: Thickets, moist woods, meadows, slopes
Elevation: 20-2200 m

Distribution

V3 771-distribution-map.gif

Greenland, Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.W.T., Nunavut, Que., Sask., Yukon, Alaska, Asia.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Anemone richardsonii"
Bryan E. Dutton +, Carl S. Keener +  and Bruce A. Ford +
Hooker +
Yellow anemone +  and anémone de Richardson +
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, Nunavut +, Que. +, Sask. +, Yukon +, Alaska +  and Asia. +
20-2200 m +
Thickets, moist woods, meadows, slopes +
Flowering spring–summer (May–Aug). +
Fl. Bor.-Amer. +
Illustrated +
Anemone vahlii +
Anemone richardsonii +
species +