Ranunculus hispidus
Ranunculus uncinatus
bristly buttercup, hispid crowfoot, renoncule hispide
hook fruit buttercup, little buttercup, woodland buttercup
never tuberous.
never tuberous.
erect or decumbent, sometimes rooting nodally, hispid or strigose, base not bulbous.
erect, never rooting nodally, hispid or glabrous, base not bulbous.
blades ovate to deltate in outline, 3-foliolate or outer blades merely 3-parted, 2-13.4 × 2.4-16.8 cm, leaflets undivided to lobed or parted, ultimate segments narrowly elliptic or oblanceolate to circular, margins toothed, apex acuminate to rounded.
blades cordate to reniform in outline, 3-parted or sometimes 3-foliolate, 1.8-5.6 × 2.8-8.3 cm, segments again lobed, ultimate segments elliptic to lanceolate, margins toothed or crenate-toothed, apex acute to rounded-obtuse.
receptacle hispid;
sepals spreading or reflexed, 4-10 × 2-5 mm, hispid;
petals 5, yellow, 8-16 × 3-9 mm.
receptacle glabrous;
sepals reflexed or sometimes spreading, 2-3.5 × 1-2 mm, pubescent;
petals 5, yellow, 2-4(-6) × 1-2(-3) mm.
hemispheric to short-ovoid, 6-10 × 7-10 mm;
achenes 2.2-5.2 × 2-3.8 mm, glabrous, margin forming narrow rib or broad wing 0.1-1.2 mm wide;
beak persistent, lance-subulate, straight or somewhat curved, 0.8-2.6 mm.
globose or hemispheric, 4-7 × 4-7 mm;
achenes 2-2.8 × 1.6-2 mm, glabrous or sparsely hispid, margin forming narrow rib 0.1-0.2 mm wide;
beak persistent, lanceolate, curved, hooked, 1.2-2.5 mm.
= 28.
Ranunculus hispidus
Ranunculus uncinatus
Varieties 3
Until recently, the varieties of Ranunculus hispidus were usually treated as distinct species. Arguments for restoring species status to R. hispidus var. nitidus were given by G. L. Nesom (1993).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Plants with hispid stems and achenes are often separated as Ranunculus uncinatus var. parviflorus; these two characters are poorly correlated, however, and sometimes vary between plants in a single collection. Ranunculus uncinatus was reported from northeastern Alberta and adjacent Northwest Territories by H. J. Scoggan (1978-1979, part 3). The specimens have hairy receptacles and straight, broad achene beaks; they apparently represent small individuals of R. macounii.
Some Native Americans used Ranunculus uncinatus as an antrirheumatic, a diaphoretic, a disinfectant, and an orthopedic aid, as well as in herbal steam baths intended to soothe sore muscles and rheumatism (D. E. Moerman 1986).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems erect or nearly erect, never rooting at nodes. | var. hispidus |
1. Stems decumbent, sometimes rooting at nodes. | → 2 |
2. Sepals spreading or reflexed from base; achene margins 0.1–0.2 mm broad. | var. caricetorum |
2. Sepals reflexed 1 mm above base; achene margins 0.4–1.2 mm broad. | var. nitidus |
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