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Ranunculus sardous Crantz  
Go To Encyclopedia of Life...
Family: Ranunculaceae
Hairy Buttercup
Ranunculus sardous image
Paul Rothrock  
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Alan T. Whittemore in Flora of North America (vol. 3)
Stems nearly erect, hispid, base not bulbous. Basal and lower cauline leaf blades ovate to cordate, 3-foliolate, 2-6 × 2-6 cm, leaflets again parted, leaflet base truncate to acute, margins crenate-dentate to crenate-lobulate, apex rounded to obtuse. Flowers pedicellate; receptacle pilose; sepals 5, reflexed, 3-8 × 1.5-3 mm, pilose; petals 5, 7-10 × 4-8 mm. Heads of achenes globose or ovoid, 5-8 × 6-7 mm; achenes 15-35 per head, 2-3 × 2-3 mm, faces sparsely papillate or sometimes smooth, glabrous, margin smooth; beak oblong to deltate, curved, 0.4-0.7 mm. Flowering late winter-summer (Mar-Aug). Roadsides, fields, open woods; 0-200 m; introduced; B.C.; Ala., Ark., Calif., Fla., Ga., Ill., Kans., Ky., La., Md., Miss., Mo., N.J., N.Y., N.C., Okla., Oreg., Pa., R.I., S.C., Tenn., Tex., Va.; native to Europe; Pacific Islands; Australia. Ranunculus sardous was collected in New Brunswick and Ontario in the 1800s, but it apparently has not persisted in those provinces.

Vascular plants of NE US and adjacent Canada
Annual, usually several-stemmed, 1-6 dm, much branched above; principal lvs mostly clustered near the base, 3-parted, the terminal segment stalked, all segments broadly triangular-obovate, deeply lobed and incised; cauline lvs much smaller, with fewer and narrower segments; fls numerous, long-pedicellate; pet 5-8(-10) mm; receptacle hairy in fr; achenes 30-40, broadly obovate to subrotund, the margin smooth and sharply differentiated, the sides papillate; beak 0.2-0.5 mm; 2n=16, 48. Native of Europe, found here and there in our range as a weed. May-July.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Indiana Coefficient of Conservatism: C = null, non-native

Wetland Indicator Status: FAC

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Paul Rothrock  
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Paul Rothrock  
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Bill Harms  
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The National Science Foundation
Developments of SEINet, Symbiota, and associated specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)