General:
Perennial herb from fibrous-rooted stem-base; stems erect, 2-14 cm tall in flower, to 23 cm in fruit, smooth.

Leaves:
All basal, circular to kidney-shaped, deeply palmately 3- to 5-lobed, the edges overlapping somewhat, 1-4 cm long, 1.5-7 cm wide, the lobes again lobed, the ultimate segments elliptic or oblong, margins toothed, tips rounded and bearing minute projecting vein tips, the stalks to 15 cm long; stem leaves none to 2, scale-like.

Flowers:
Inflorescence a solitary terminal flower; flower stalks to 14 cm long; receptacle smooth; petals 11 to 15, distinct, yellow, oblanceolate to spoon-shaped, 8-12 mm long, 3-5 mm wide, long-clawed, nectary on upper surface, the nectary scale divided and V-shaped; sepals 5, spreading, persistent, greenish-yellow, 7-11 mm long, 4-7 mm wide, smooth; stamens (50) 75-125; pistils (30) 70-100.

Fruits:
Achenes, numerous in a globe-shaped head 7-8 mm long, 9-10 mm wide, the achenes elliptic, 2.4-4.6 mm long, 1.2-2.2 mm wide, smooth, membranous, margins and faces strongly veined; beaks persistent, thread-like, 1-1.8 mm long, hooked at tip.

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia

Synonyms and Alternate Names:
Ranunculus cooleyae Vasey & Rose