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Annual to biennial herb from a taproot; stems slender, spreading to ascending, 10-50 cm long/tall, freely branched, leafy, finely spreading- to appressed-hairy or woolly.
Basal leaves few, stalked, palmately compound; leaflets 5, oval to lance-oblong, 1-5 cm long, coarse-toothed, fine-hairy; stem leaves alternate, several, the lower similar to the basal but the upper usually with 3 leaflets.
Inflorescence a spreading, leafy-bracted, terminal cluster of many stalked flowers; corollas yellow, cup-shaped, the petals 5, spoon-shaped, about 2 mm long, about 1/2 the length of the calyx-lobes; calyces soft-hairy, 5-lobed, the lobes triangular-egg-shaped, alternating with 5 longer narrower bractlets; ovaries superior, the styles thickened at the base; stamens 5-15.
Achenes, numerous, clustered, lopsided-egg-shaped, about 0.7 mm long, yellowish-brown, smooth or slightly wrinkled.
Source: The Illustrated Flora of British Columbia