Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Image Library
Search Images
Inventories
State Floras
Kentucky Flora
Dynamic Tools
Dynamic Checklist
Dynamic Key
Anemone richardsonii
Hook.
Family:
Ranunculaceae
Yellow False Thimbleweed
[
Anemonastrum richardsonii
(Hook.) Mosyakin]
FNA
Resources
Bryan E. Dutton, Carl S. Keener & Bruce A. Ford in Flora of North America (vol. 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. 2 n =14.
Flowering spring-summer (May-Aug). Thickets, moist woods, meadows, slopes; 20-2200 m; Greenland; Alta., B.C., Man., Nfld., N.W.T., Que., Sask., Yukon; Alaska; Asia.
Open Interactive Map
Click to Display
100 Initial Images
- - - - -
View All Images
This project made possible by
National Science Foundation Award 1410069
Powered by
Symbiota
.