Ranunculus fascicularis |
Ranunculus lapponicus |
|
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early buttercup, early crowfoot, prairie buttercup, tuft buttercup |
Lapland buttercup, renoncule de lapponie |
|
Roots | always both filiform and tuberous on same stem. |
|
Stems | erect or ascending, never rooting nodally, strigose or spreading-strigose, base not bulbous. |
prostrate, buried, rooting nodally, glabrous, not bulbous-based. |
Basal leaf | blades ovate to broadly ovate in outline, 3-5-foliolate, 2.1-4.7 × 1.9-4.5 cm, leaflets undivided or 1x-lobed or -parted, ultimate segments oblanceolate or obovate, margins entire or with few teeth, apex rounded-acute to rounded-obtuse. |
blades reniform, deeply 3-parted, 1.1-2.6 × 1.6-4.3 cm, segments undivided or 1x cleft, margins crenate, apex rounded. |
Flowers | receptacle hispid or glabrous; sepals spreading or sometimes reflexed from base, 5-7 × 2-3 mm, hispid or glabrous; petals 5(-7), yellow, 8-14 × 3-6 mm. |
receptacle glabrous; sepals spreading or reflexed from base, 4-7 × 2-5 mm, glabrous; petals yellow, 5-6 × 2-3 mm. |
Heads of achenes | globose or ovoid, 5-9 × 5-8 mm; achenes 2-2.8 × 1.8-2.2 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, filiform, straight, 1.2-2.8 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. |
Tuberous | roots absent. |
|
2n | = 32. |
= 16. |
Ranunculus fascicularis |
Ranunculus lapponicus |
|
Phenology | Flowering winter–spring (Jan–Jun). | Flowering late spring–summer (Jun–Jul). |
Habitat | Grassland or deciduous forest | Boggy places and lakesides in tundra, muskeg, and boreal forest |
Elevation | 0-300 m (0-1000 ft) | 0-900 m (0-3000 ft) |
Distribution |
AL; AR; CT; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MN; MO; MS; NC; NE; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; MB; ON
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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 | Ranunculus fascicularis is very similar to R. hispidus var. hispidus, and herbarium specimens without underground parts may be difficult to identify. Ranunculus fascicularis grows in drier habitats; segments of its leaves are commonly oblanceolate and blunt, with few or no marginal teeth; and its petals are widest at or below the middle. Ranunculus hispidus var. hispidus is usually larger in all its parts (leaves, flowers, heads of achenes); leaf segments are variable in shape but their apices are normally sharper and their marginal teeth more numerous, and petals are widest above the middle. (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.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus | Ranunculaceae > Ranunculus > subg. Coptidium |
Sibling taxa | ||
Synonyms | R. fascicularis var. apricus | |
Name authority | Muhlenberg ex J. M. Bigelow: Fl. Boston., 137. (1814) | Linnaeus: Sp. Pl. 1: 553. (1753) |
Web links |