Ranunculus rhomboideus |
Ranunculus inamoenus |
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Labrador buttercup, prairie buttercup, prairie crowfoot |
graceful buttercup, unlovely buttercup |
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Roots | slender, 0.8-1.8 mm thick. |
slender, 0.6-1.2 mm thick. |
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Stems | erect, 5-22 cm, pilose or occasionally glabrous, each with 3-12 flowers. |
erect, 5-33 cm, pilose or glabrous, each with 3-7 flowers. |
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Basal leaves | persistent, blades ovate to rhombic, undivided or rarely innermost 3-parted, 1.1-5.3 × 0.9-3.6 cm, base obtuse, margins crenate with 5 crenae, apex rounded. |
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. |
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Flowers | pedicels pilose; receptacle pilose; sepals 4-6 × 1.5-3 mm, abaxially pilose, hairs colorless; petals 5, 6-8 × 2-4 mm; nectary scale glabrous. |
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. |
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Heads of achenes | depressed-globose, 4-6 × 5-7 mm; achenes 1.8-2.2 × 1.2-1.8 mm, glabrous; beak slender, curved, 0.2-0.3 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. |
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2n | = 16. |
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Ranunculus rhomboideus |
Ranunculus inamoenus |
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Phenology | Flowering spring (Apr–Jun). | |||||
Habitat | Prairies, or occasionally open woods or thickets | |||||
Elevation | 0-900 m (0-3000 ft) | |||||
Distribution |
IA; IL; MI; MN; MT; ND; NE; SD; WI; AB; BC; MB; NT; ON; SK
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AZ; CO; ID; MT; NE; NM; NV; SD; UT; WA; WY; AB; BC; SK
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Discussion | In addition to the range given above, L. D. Benson (1948) cited nineteenth-century specimens from Quebec, New York, Massachusetts, and Rhode Island. No modern specimens have been seen from those areas. (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.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Epirotes | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Epirotes | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Goldie: Edinburgh J. Sci. 6: 329. (1822) | Greene: Pittonia 3: 91. (1896) | ||||
Web links |