Ranunculus bonariensis |
Ranunculus repens |
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Carter's buttercup |
creeping buttercup, crowfoot, double flower creeping buttercup, renoncule rampante, spot-leaf crowfoot |
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Roots | never tuberous. |
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Stems | decumbent or creeping, rooting nodally, hispid to strigose or almost glabrous, base not bulbous. |
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Basal leaf blades | ovate to reniform in outline, 3-foliolate, 1-8.5 × 1.5-10 cm, leaflets lobed, parted, or parted and again lobed, ultimate segments obovate to elliptic or sometimes narrowly oblong, margins toothed, apex obtuse to acuminate. |
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Flowers | receptacle hispid or rarely glabrous; sepals spreading or reflexed from base, 4-7(-10) × 1.5-3(-4) mm, hispid or sometimes glabrous; petals 5(-150), yellow, 6-18 × 5-12 mm. |
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Heads of achenes | globose or ovoid, 5-10 × 5-8 mm; achenes 2.6-3.2 × 2-2.8 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate to lance-filiform, curved, 0.8-1.2 mm. |
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2n | = 14, 32. |
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Ranunculus bonariensis |
Ranunculus repens |
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Phenology | Flowering late winter–summer (Mar–Aug). | |
Habitat | Meadows, borders of marshes, lawns, roadsides | |
Elevation | 0-2500 m [0-8200 ft] | |
Distribution |
CA; temperate South America
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AK; AL; AR; CA; CT; DC; DE; IA; ID; IL; IN; KY; MA; MD; ME; MI; MN; MO; MT; NC; NE; NH; NJ; NV; NY; OH; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; NB; NF; NS; ON; PE; QC; YT; SPM; Central America; South America; Pacific Islands; Greenland; native to Eurasia; Australia [Introduced in North America]
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Discussion | Varieties 3 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Ranunculus repens is widely naturalized in many parts of the world. Plants with sparse pubescence have been called R. repens var. glabratus. Horticultural forms with the outer stamens transformed into numerous extra petals occasionally become established and have been called R. repens var. pleniflorus. These variants have no taxonomic significance. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | ||
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | R. repens var. erectus, R. repens var. glabratus, R. repens var. linearilobus, R. repens var. pleniflorus, R. repens var. villosus | |
Name authority | Poiret: in J. Lamarck et al., Encycl. 6: 102. (1804) | Linnaeus: Sp. Pl. 1: 554. (1753) |
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