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Macoun's buttercup

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.

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.

Fruits

Achenes glabrous, 2.5 mm. long, elliptic in outline, stylar beak slightly hooked.

Ranunculus cooleyae

Ranunculus macounii

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.
[WildflowerSearch map]
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.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Threatened in Washington (WANHP) Not of concern
Sibling taxa
R. abortivus, R. acris, R. alismifolius, R. aquatilis, R. arvensis, R. bulbosus, R. californicus, R. cardiophyllus, R. eschscholtzii, R. flabellaris, R. flammula, R. glaberrimus, R. gmelinii, R. grayi, R. hebecarpus, R. inamoenus, R. macounii, R. muricatus, R. occidentalis, R. orthorhynchus, R. parviflorus, R. pensylvanicus, R. populago, R. pygmaeus, R. repens, R. sardous, R. sceleratus, R. triternatus, R. uncinatus
R. abortivus, R. acris, R. alismifolius, R. aquatilis, R. arvensis, R. bulbosus, R. californicus, R. cardiophyllus, R. eschscholtzii, R. flabellaris, R. flammula, R. glaberrimus, R. gmelinii, R. grayi, R. hebecarpus, R. inamoenus, R. muricatus, R. occidentalis, R. orthorhynchus, R. parviflorus, R. pensylvanicus, R. populago, R. pygmaeus, R. repens, R. sardous, R. sceleratus, R. triternatus, R. uncinatus
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