Ranunculus lapponicus |
Ranunculus allegheniensis |
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Lapland buttercup, renoncule de lapponie |
Allegheny crowfoot, Allegheny Mountain buttercup |
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Roots | slender, 0.2-0.8 mm thick. |
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Stems | prostrate, buried, rooting nodally, glabrous, not bulbous-based. |
erect or nearly erect, 10-50 cm, glabrous, each with 9-40 flowers. |
Basal leaves | blades reniform, deeply 3-parted, 1.1-2.6 × 1.6-4.3 cm, segments undivided or 1x cleft, margins crenate, apex rounded. |
persistent, blades reniform, outer undivided, inner 3-lobed to 3-foliolate, 1-3.5 × 1.5-4.5 cm, base truncate or cordate, margins crenate, apex rounded or obtuse. |
Flowers | receptacle glabrous; sepals spreading or reflexed from base, 4-7 × 2-5 mm, glabrous; petals yellow, 5-6 × 2-3 mm. |
pedicels pubescent or glabrous; receptacle sparsely pilose; sepals 2-3 × 1-2 mm, abaxially sparsely hispid, hairs colorless; petals 5, 1-2 × 0.5-1 mm; nectary scale glabrous. |
Heads of achenes | 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. |
globose to ovoid, 3-7 × 3-5 mm; achenes 1.5-2 × 1.4-1.8 mm, glabrous; beak slender, strongly curved, 0.6-1 mm. |
Tuberous | roots absent. |
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2n | = 16. |
= 16. |
Ranunculus lapponicus |
Ranunculus allegheniensis |
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Phenology | Flowering late spring–summer (Jun–Jul). | Flowering spring–summer (Apr–Jul). |
Habitat | Boggy places and lakesides in tundra, muskeg, and boreal forest | Woods and pastures |
Elevation | 0-900 m (0-3000 ft) | 0-1100 m (0-3600 ft) |
Distribution |
AK; ME; MI; MN; AB; BC; MB; NB; NF; NT; ON; QC; SK; YT; Greenland; Eurasia
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CT; KY; MA; MD; NC; NY; OH; PA; RI; TN; VA; VT; WV
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Discussion | 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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Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Coptidium | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Epirotes |
Sibling taxa | ||
Name authority | Linnaeus: Sp. Pl. 1: 553. (1753) | Britton: Bull. Torrey Bot. Club 22: 224. (1895) |
Web links |