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Erect, hairy. Basal leaves with long erect petioles, a more or less heart-shaped terminal leaflet many times larger than the variously sized small leaflets below; stem leaves usually sessile, deeply lobed to 3 lobes. Flowers 3–10 at top, with 5 nearly round yellow petals, many stamens. Var. macrophyllum with the terminal leaflet of basal leaves shallowly lobed, all leaves finely toothed. Var. perincisum grows east of Cascades, has terminal leaflet of basal leaf more deeply lobed.
Meadow, West-Side Forest, East-Side Forest, Moist Riverbanks. Grows in streambanks, edges of woods, moist meadows, usually at low elevations, but can grow to subalpine.