Ranunculus alismifolius |
Ranunculus lapponicus |
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common water plantain buttercup, kidney-leaf buttercup, plantain-leaf buttercup, water-plantain buttercup |
Lapland buttercup, renoncule de lapponie |
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Roots | slender or fusiform-thickened basally, glabrous. |
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Stems | erect or ascending, not rooting nodally, glabrous or hirsute. |
prostrate, buried, rooting nodally, glabrous, not bulbous-based. |
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Leaves | basal leaf blades with base acute; proximal cauline leaf blades lanceolate, ovate, or elliptic, 1.8-14.1 × 0.7-2.9 cm, base acuminate to rounded, margins entire or serrulate, apex obtuse to acuminate. |
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Basal leaf | blades reniform, deeply 3-parted, 1.1-2.6 × 1.6-4.3 cm, segments undivided or 1x cleft, margins crenate, apex rounded. |
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Inflorescences | bracts lanceolate. |
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Flowers | receptacle glabrous; sepals 5, spreading or reflexed from base, 2-6 × 1-4 mm, glabrous or hirsute; petals 5-12, 5-14 × 2-8 mm; nectary scales glabrous. |
receptacle glabrous; sepals spreading or reflexed from base, 4-7 × 2-5 mm, glabrous; petals yellow, 5-6 × 2-3 mm. |
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Heads of achenes | hemispheric to globose, 3-7 × 4-8 mm; achenes 1.6-2.8 × 1.2-2 mm, glabrous or rarely hispid; beak lance-subulate, straight or weakly curved, 0.4-1.2 mm. |
hemispheric, 5-7 × 8-10 mm; achenes 3.8-4.2 × 2-2.2 mm, glabrous; beak persistent, lanceolate, curved, tip hooked, 1.6-2.4 mm. |
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Tuberous | roots absent. |
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2n | = 16. |
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Ranunculus alismifolius |
Ranunculus lapponicus |
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Phenology | Flowering late spring–summer (Jun–Jul). | |||||||||||||||||||||
Habitat | Boggy places and lakesides in tundra, muskeg, and boreal forest | |||||||||||||||||||||
Elevation | 0-900 m (0-3000 ft) | |||||||||||||||||||||
Distribution |
CA; CO; ID; MT; NV; OR; UT; WA; WY; BC
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AK; ME; MI; MN; AB; BC; MB; NB; NF; NT; ON; QC; SK; YT; Greenland; Eurasia
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Discussion | Varieties 6 (6 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Starving individuals among western Eskimo groups ate the soaked plant of Ranunculus lapponicus as a dietary aid before consuming other food (D. E. Moerman 1986). (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. Flammula | Ranunculaceae > Ranunculus > subg. Coptidium | ||||||||||||||||||||
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Subordinate taxa | ||||||||||||||||||||||
Name authority | Geyer ex Bentham: Pl. Hartw., 295. (1849) | Linnaeus: Sp. Pl. 1: 553. (1753) | ||||||||||||||||||||
Web links |
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