Comments
provided by eFloras
Through most of its range, Ranunculus macounii has conspicuously hispid herbage. Glabrous plants are found, however, in the lower Columbia River valley (southwestern Washington and adjacent Oregon). This variant has been called R . macounii var. oreganus .
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Description
provided by eFloras
Stems prostrate to nearly erect, often rooting nodally, hirsute or glabrous, base not bulbous. Roots never tuberous. Basal leaf blades cordate to reniform in outline, 3-foliolate, 3.7-7.5 × 4.5-9.5 cm, leaflets 3-lobed or -parted, ultimate segments elliptic or lance-elliptic, margins toothed or lobulate, apex acute to broadly acute. Flowers: receptacle hirsute; sepals spreading or reflexed ca. 1 mm above base, 4-6 × 1.5-3 mm, glabrous or hirsute; petals 5, yellow, 4-6 × 3.5-5 mm. Heads of achenes globose or ovoid, 7-11 × 7-10 mm; achenes 2.4-3 × 2-2.4 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate to broadly lanceolate, straight or nearly so, 1-1.2 mm. 2 n = 32, 48.
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Distribution
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Alta., B.C., Man., Nfld., N.W.T., Ont., Que., Sask., Yukon; Alaska, Ariz., Calif., Colo., Idaho, Mich., Minn., Mont., Nebr., Nev., N.Mex., N.Dak., Oreg., S.Dak., Utah, Wash., Wyo.
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Flowering/Fruiting
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Flowering spring-summer (May-Sep).
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Habitat
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Meadows, depressions in woodlands, ditches, edges of streams and ponds, on wet soil or emergent from shallow water; 0-2900m.
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Synonym
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Ranunculus macounii var. oreganus (A. Gray) K. C. Davis
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Ranunculus macounii
provided by wikipedia EN
Ranunculus macounii is a species of buttercup known by the common name Macoun's buttercup.[1] It is native to much of North America, from Alaska and northwestern Canada to Newfoundland and Labrador, and the contiguous United States except for the northeast and southeastern areas. It grows in many types of moist habitat, including marshes and wet areas woodlands and scrub. It is generally semi-aquatic, growing in or next to shallow water, or in muddy places. It is a perennial herb producing prostrate, spreading stems that root at nodes that come in contact with moist substrate, or growing erect and branching. The stems are generally hairy, but populations of hairless specimens are known. The leaves are mostly divided into three lobed, toothed leaflets which are borne on long, hairy petioles. The flowers each have five shiny yellow petals under a centimeter long around a center of many stamens and pistils. The fruit is an achene borne in a spherical cluster of 20 or more.
References
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^ USDA, NRCS (n.d.). "Ranunculus macounii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 18 October 2015.
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Ranunculus macounii: Brief Summary
provided by wikipedia EN
Ranunculus macounii is a species of buttercup known by the common name Macoun's buttercup. It is native to much of North America, from Alaska and northwestern Canada to Newfoundland and Labrador, and the contiguous United States except for the northeast and southeastern areas. It grows in many types of moist habitat, including marshes and wet areas woodlands and scrub. It is generally semi-aquatic, growing in or next to shallow water, or in muddy places. It is a perennial herb producing prostrate, spreading stems that root at nodes that come in contact with moist substrate, or growing erect and branching. The stems are generally hairy, but populations of hairless specimens are known. The leaves are mostly divided into three lobed, toothed leaflets which are borne on long, hairy petioles. The flowers each have five shiny yellow petals under a centimeter long around a center of many stamens and pistils. The fruit is an achene borne in a spherical cluster of 20 or more.
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