All Floras      Advanced Search
FNA Vol. 3 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 3 | Ranunculaceae | Ranunculus

17. Ranunculus hispidus Michaux, Fl. Bor.-Amer. 1: 321. 1803.

Renoncule hispide

Stems erect or decumbent, sometimes rooting nodally, hispid or strigose, base not bulbous. Roots never tuberous. Basal leaf 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. Flowers: receptacle hispid; sepals spreading or reflexed, 4-10 × 2-5 mm, hispid; petals 5, yellow, 8-16 × 3-9 mm. Heads of achenes 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.

Varieties 3: North America.

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).

1 Stems erect or nearly erect, never rooting at nodes.   17a var. hispidus
+ Stems decumbent, sometimes rooting at nodes.   (2)
2 (1) Sepals spreading or reflexed from base; achene margins 0.1–0.2 mm broad.   17b var. caricetorum
+ Sepals reflexed 1 mm above base; achene margins 0.4–1.2 mm broad.   17c var. nitidus

Lower Taxa


 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |