Ranunculus repens |
Ranunculus kamtschaticus |
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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. |
erect from short caudices or rhizomes, not 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 circular to ovate or obovate, undivided, 0.8-2.6 × 0.6-1.4 cm, margins entire or serrulate, apex obtuse or rounded. |
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, 4-8 × 2-4 mm, glabrous; petals yellow, 5-12 × 1-3 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. |
depressed-hemispheric or -conic, 3-4 × 5 mm; achenes 2-2.6 × 1-1.4 mm, glabrous; beak persistent, lanceolate, straight, 0.8-1.2 mm. |
Tuberous | roots absent. |
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2n | = 14, 32. |
= 16. |
Ranunculus repens |
Ranunculus kamtschaticus |
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Phenology | Flowering late winter–summer (Mar–Aug). | Flowering late spring–summer (May–Aug). |
Habitat | Meadows, borders of marshes, lawns, roadsides | Tundra on moist slopes |
Elevation | 0-2500 m (0-8200 ft) | 0-300 m (0-1000 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; Asia |
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. Oxygraphis |
Sibling taxa | ||
Synonyms | R. repens var. erectus, R. repens var. glabratus, R. repens var. linearilobus, R. repens var. pleniflorus, R. repens var. villosus | Oxygraphis glacialis |
Name authority | Linnaeus: Sp. Pl. 1: 554. (1753) | de Candolle: Syst. Nat. 1: 302. (1817) |
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