Ranunculus sardous |
Ranunculus acriformis |
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hairy buttercup, hairy crowfoot |
sharpleaf buttercup |
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Roots | never tuberous, sometimes thick and ± fleshy proximally. |
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Stems | nearly erect, hispid, base not bulbous. |
erect, not rooting nodally, hirsute or strigose, base not bulbous. |
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Basal leaf blades | broadly ovate to cordate or sometimes reniform in outline, deeply 3-divided or occasionally 3-foliolate, 2.2-6 × 2.5-7.7(-10) cm, divisions 1-2x deeply parted or -dissected, ultimate segments linear to broadly linear, margins entire (occasionally a lobe reduced to large tooth), apex acute or rounded-acute. |
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Flowers | pedicellate; receptacle pilose; sepals 5, reflexed, 3-8 × 1.5-3 mm, pilose; petals 5, 7-10 × 4-8 mm. |
receptacle glabrous; sepals spreading or variously reflexed, 4-6 × 2-4 mm, appressed-hirsute; petals 5(-10), yellow, 7-13 × 4-10 mm. |
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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. |
hemispheric or globose, 5-8 × 6-8(-10) mm; achenes 2.2-3.4 × 2-3 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate, strongly curved, 0.4-1.6 mm. |
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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. |
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Ranunculus sardous |
Ranunculus acriformis |
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Phenology | Flowering late winter–summer (Mar–Aug). | |||||||||
Habitat | Roadsides, fields, open woods | |||||||||
Elevation | 0-200 m (0-700 ft) | |||||||||
Distribution |
AL; AR; CA; FL; GA; IL; KS; KY; LA; MD; MO; MS; NC; NJ; NY; OK; OR; PA; RI; SC; TN; TX; VA; BC; native to Europe; Pacific Islands; Australia [Introduced in North America]
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CO; ID; MT; UT; WY
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Discussion | Ranunculus sardous was collected in New Brunswick and Ontario in the 1800s, but it apparently has not persisted in those provinces. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Echinella | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | R. parvulus | |||||||||
Name authority | Crantz: Stirp. Austr. Fasc. 2: 84. (1763) | A. Gray: Proc. Amer. Acad. Arts 21: 374. (1886) | ||||||||
Web links |
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