Ranunculus repens |
Ranunculus pallasii |
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creeping buttercup, crowfoot, double flower creeping buttercup, renoncule rampante, spot-leaf crowfoot |
Pallas' buttercup, renoncule de Pallas |
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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. |
creeping or floating, rooting nodally, glabrous, not bulbous-based. |
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. |
blades linear to obovate, undivided or 3-lobed, 1.5-3.6 × 0.3-2 cm, lobes lanceolate or elliptic, margins entire, apex rounded to acuminate. |
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. |
receptacle glabrous; sepals spreading, 6-10 × 4-7 mm, glabrous; petals 7-11, white or pink, 8-13 × 3-6 mm. |
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. |
globose or hemispheric, 5-12 × 9-15 mm; achenes 4.2-5.2 × 2.4-3.2 mm, glabrous; beak persistent, lanceolate, straight or curved, 1-1.2 mm. |
Tuberous | roots absent. |
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2n | = 14, 32. |
= 32. |
Ranunculus repens |
Ranunculus pallasii |
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Phenology | Flowering late winter–summer (Mar–Aug). | Flowering summer (Jul–Aug). |
Habitat | Meadows, borders of marshes, lawns, roadsides | Shallow water of bogs and pools in muskeg and tundra |
Elevation | 0-2500 m (0-8200 ft) | 0-700 m (0-2300 ft) |
Distribution |
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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AK; MB; NF; NT; ON; QC; YT; Eurasia |
Discussion | 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.) |
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Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus | Ranunculaceae > Ranunculus > subg. Pallasiantha |
Sibling taxa | ||
Synonyms | R. repens var. erectus, R. repens var. glabratus, R. repens var. linearilobus, R. repens var. pleniflorus, R. repens var. villosus | |
Name authority | Linnaeus: Sp. Pl. 1: 554. (1753) | Schlechtendal: Animadv. Bot. Ranunc. Cand. 1: 15. (1819) |
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