Ranunculus pallasii |
Ranunculus gmelinii |
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Pallas' buttercup, renoncule de Pallas |
Gmelin's buttercup, Gmelin's water buttercup, lesser yellow water crowfoot, renoncule de Gmelin, small yellow water-buttercup, yellow water crowfoot |
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Stems | creeping or floating, rooting nodally, glabrous, not bulbous-based. |
prostrate or sometimes floating, glabrous or hirsute, rooting nodally. |
Leaves | basal leaves absent, cauline leaf blades reniform to circular, 3-parted, 0.6-6.5 × 1.1-9 cm, base cordate, segments again 1-3x-lobed to -dissected, margins entire or crenate, apex rounded to filiform. |
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Basal leaf 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. |
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Flowers | receptacle glabrous; sepals spreading, 6-10 × 4-7 mm, glabrous; petals 7-11, white or pink, 8-13 × 3-6 mm. |
receptacle sparsely hispid; sepals 4-5, spreading or reflexed from base, 2-5 × 2-4 mm, glabrous or sparsely pilose; petals 4-14, 3-7 × 2-5 mm; nectary scale variable, crescent-shaped, funnel-shaped, or flaplike; style 0.2-0.4 mm. |
Heads of achenes | 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. |
globose or ovoid, 3-8 × 3-7 mm; achenes 1-1.6 × 1-1.2 mm, glabrous; beak narrowly lanceolate or filiform, 0.4-0.8 mm. |
Tuberous | roots absent. |
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2n | = 32. |
= 16, 32, 64. |
Ranunculus pallasii |
Ranunculus gmelinii |
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Phenology | Flowering summer (Jul–Aug). | Flowering spring–summer (May–Sep). |
Habitat | Shallow water of bogs and pools in muskeg and tundra | Shallow water or drying mud, wet meadows, swamps, marshes, ponds, shores of rivers |
Elevation | 0-700 m (0-2300 ft) | 0-2800 m (0-9200 ft) |
Distribution |
AK; MB; NF; NT; ON; QC; YT; Eurasia |
AK; CO; IA; ID; IL; ME; MI; MN; MT; ND; NM; NV; OR; UT; WA; WI; WY; AB; BC; MB; NB; NF; NS; NT; ON; PE; QC; SK; YT; Eurasia
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Discussion | Ranunculus gmelinii has been divided into varieties on the basis of indument and flower size. These characters are variable and poorly correlated with one another, however, and these varieties scarcely seem natural. (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. Pallasiantha | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Hecatonia |
Sibling taxa | ||
Synonyms | R. gmelinii subsp. purshii, R. gmelinii var. hookeri, R. gmelinii var. limosus, R. gmelinii var. prolificus, R. purshii | |
Name authority | Schlechtendal: Animadv. Bot. Ranunc. Cand. 1: 15. (1819) | de Candolle: Syst. Nat. 1: 303. (1817) |
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