General:
Perennial herb from slender, fibrous roots; stems 1 to several, erect, 5-25 cm tall, hairy above or smooth, hollow.
Leaves:
Basal leaves persistent, thick, egg-shaped to nearly circular, rarely kidney-shaped, undivided to shallowly 3- (5-) lobed, 1-4 cm long, 1-3.5 cm wide, shallowly toothed, tips rounded, bases wedge-shaped to rounded, the stalks 2- to 5-times length of blade; stem leaves thin, alternate, unstalked, divided nearly to base into 3 to 5 (7) linear to oblanceolate segments 2-4 cm long, often absent.
Flowers:
Inflorescence a 3- to 7-flowered cyme; flower stalks 1-7 cm long, appressed-hairy; receptacle soft-hairy or smooth; petals 5, distinct, yellow, 4-9 mm long, 2-5 mm wide, oblanceolate to narrowly egg-shaped, nectary on upper surface, the scale about 1 mm long, smooth; sepals 5, spreading to bent back, persistent, 3-5 mm long, 2-3 mm wide, soft-hairy above; stamens 25-50; pistils 40-100.
Fruits:
Achenes, numerous in a cylindric head 7-17 mm long, 5-8 mm wide, the achenes egg-shaped, 1.5-2 mm long, 1.3-1.8 mm wide, white fine-hairy to smooth, margins evident; beaks persistent, awl-shaped, 0.4-2 mm long, straight or hooked.
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 affinis var. micropetalus Greene
Ranunculus alpeophilus
Ranunculus inamoenus subsp. inamoenus
Ranunculus inamoenus var. typicus L.D. Benson