Ranunculus fascicularis
Ranunculus inamoenus
early buttercup, early crowfoot, prairie buttercup, tuft buttercup
graceful buttercup, unlovely buttercup
always both filiform and tuberous on same stem.
slender, 0.6-1.2 mm thick.
erect or ascending, never rooting nodally, strigose or spreading-strigose, base not bulbous.
erect, 5-33 cm, pilose or glabrous, each with 3-7 flowers.
blades ovate to broadly ovate in outline, 3-5-foliolate, 2.1-4.7 × 1.9-4.5 cm, leaflets undivided or 1x-lobed or -parted, ultimate segments oblanceolate or obovate, margins entire or with few teeth, apex rounded-acute to rounded-obtuse.
persistent, blades ovate, obovate or orbiculate, rarely reniform, undivided or innermost with 2 clefts or partings near apex, 1-3.7 × 1.1-3.5 cm, base acute to rounded, margins entire, apex rounded.
receptacle hispid or glabrous;
sepals spreading or sometimes reflexed from base, 5-7 × 2-3 mm, hispid or glabrous;
petals 5(-7), yellow, 8-14 × 3-6 mm.
pedicels appressed-pubescent;
receptacle pilose or glabrous;
sepals 3-5 × 2-3 mm, abaxially pilose, hairs colorless;
petals 5, 4-9 × 2-5 mm;
nectary scale glabrous.
globose or ovoid, 5-9 × 5-8 mm;
achenes 2-2.8 × 1.8-2.2 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide;
beak persistent, filiform, straight, 1.2-2.8 mm.
cylindric, 7-17 × 5-8 mm;
achenes 1.5-2 × 1.3-1.8 mm, canescent or glabrous;
beak subulate, straight or hooked, 0.4-2 mm.
= 32.
Ranunculus fascicularis
Ranunculus inamoenus
Ranunculus fascicularis is very similar to R. hispidus var. hispidus, and herbarium specimens without underground parts may be difficult to identify. Ranunculus fascicularis grows in drier habitats; segments of its leaves are commonly oblanceolate and blunt, with few or no marginal teeth; and its petals are widest at or below the middle. Ranunculus hispidus var. hispidus is usually larger in all its parts (leaves, flowers, heads of achenes); leaf segments are variable in shape but their apices are normally sharper and their marginal teeth more numerous, and petals are widest above the middle.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
The Navaho-Ramah considered Ranunculus inamoenus to be an effective hunting medicine, used to protect hunters from their prey (D. E. Moerman 1986).
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Sepals 3–5 mm; beaks of achenes 0.4–0.9 mm. | var. inamoenus |
1. Sepals 5–7 mm; beaks of achenes 1.4–2 mm. | var. subaffinis |
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