Ranunculus eschscholtzii var. oxynotus |
Ranunculus eschscholtzii |
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Eschscholtz's buttercup |
Eschscholtz's buttercup, snow buttercup, subalpine buttercup |
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Roots | slender, 0.4-1.6 mm thick. |
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Stems | caudex 2.5-4.5 cm, densely clothed with persistent leaf bases. |
erect or decumbent from short or long caudices, 4-27 cm, glabrous, each with 1-3 flowers. |
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Basal leaves | persistent, blades reniform or cordate to obovate or broadly oblong, lobed or 3-parted, 0.5-4.1 × 0.8-3.7 cm, segments again 1(-2)×-lobed, base obtuse to cordate, apices of segments rounded in outline. |
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Basal leaf blades | reniform, shallowly 5-9-lobed or sometimes 3-parted with lateral segments again lobed, 1.5-1.5 × 0.8-2 cm, base truncate, middle segment unlobed, ultimate segments and sinuses rounded or obtuse. |
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Flowers | petals 6-13 mm. |
pedicels glabrous; receptacle glabrous or sparsely pilose; sepals 4-8 × 2-6 mm, abaxially glabrous or pilose; petals 5-8, 6-16 × 4-16 mm; nectary scale glabrous. |
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Heads of achenes | cylindric or ovoid, 5-10 × 4-7 mm; achenes 1.4-2 × 1-1.6 mm, glabrous or sparsely pubescent; beak lanceolate or subulate, straight (sometimes curved when immature), 0.6-1.8 mm. |
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Ranunculus eschscholtzii var. oxynotus |
Ranunculus eschscholtzii |
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Phenology | Flowering summer (Jul–Sep). | |||||||||||||||||
Habitat | Open rocky alpine slopes and meadows | |||||||||||||||||
Elevation | 2900-4000 m (9500-13100 ft) | |||||||||||||||||
Distribution |
CA; NV |
AK; AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT; YT
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Discussion | Varieties 6 (5 in the flora). (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 | ||||||||||||||||||
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Synonyms | R. oxynotus | |||||||||||||||||
Name authority | (A. Gray) Jepson: Fl. Calif. 1: 537. (1922) | Schlechtendal: Animadv. Bot. Ranunc. Cand. 2: 16. (1820) | ||||||||||||||||
Web links |