Ranunculus cooleyae |
Ranunculus macounii |
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Macoun's buttercup |
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Habit | Scapose perennial from a thick, fibrous root, glabrous throughout. | |
Leaves | : Leaves all basal, the petioles up to 15 cm. long, the blades reniform, 1.5-4 cm. broad, deeply 3- to 5-lobed, the main segments overlapping, usually 2-3 lobed half their length and deeply round-toothed. |
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Flowers | Scapes 1-flowered, naked or with a bract mid-length, 10-35 cm. tall; sepals 5, broadly ovate, 7-10 mm. long, glabrous; petals 7-12, yellow, slender, long-clawed, barely exceeding the sepals; nectary scale V-shaped, attached the entire length of the margins; stamens 75-125; pistils 70-100. |
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Fruits | Achenes glabrous, 2.5 mm. long, elliptic in outline, stylar beak slightly hooked. |
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Ranunculus cooleyae |
Ranunculus macounii |
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Flowering time | June-August | May-July |
Habitat | Damp slopes and rocky crevices at high elevations, blossoming as snow recedes. | Riparian areas and wet meadows from lowlands to montane. |
Distribution | Occurring west of the Cascades crest in Washington; Alaska to Washington.
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Occurring chiefly east of the Cascades crest in Washington; Alaska south to California, east to the Rocky Mountains and northern Great Plains and central Canada; also in Canadian Maritimes.
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Origin | Native | Native |
Conservation status | Threatened in Washington (WANHP) | Not of concern |
Sibling taxa | ||
Web links |
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