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Genus = Ranunculus, Displaying matches 1 - 26 of 26. |
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Ranunculus acris (tall buttercup, meadow buttercup) (= Ranunculus acris in Flora of the Pacific Northwest) Perennial from slender, fibrous roots with stiff, spreading hairs throughout, the 1-several stems freely branched, hollow, erect, 3-8 dm. tall. Distribution: Found in much of the United States, but introduced in the Pacific Northwest, where more common west of the Cascades Habitat: Moist to well-drained soil at low to moderate elevations |
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Ranunculus alismifolius (plantain-leaf buttercup, dwarf plantain-leaved buttercup) (= Ranunculus alismaefolius in Flora of the Pacific Northwest) Usually glabrous perennial from a cluster of fibrous roots, the 1-several stems erect, 1.5-6 dm. tall. Distribution: Throughout much of western United States and southwest Canada Habitat: Swales, streambanks and moist meadows, moderate to high elevations in the mountains |
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Ranunculus aquatilis (white water buttercup, white water crowfoot) (= Ranunculus aquatilis var. hispidulus in Flora of the Pacific Northwest) Pubescent, aquatic perennial, the stem flaccid, rooting at the nodes, 1-2 mm. thick and up to 1 m. long. Distribution: Alaska to California, east to Montana and Wyoming Habitat: In sluggish streams and ponds, low to moderate elevations |
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Ranunculus arvensis (corn buttercup, field buttercup, hungerweed) (= Ranunculus arvensis in Flora of the Pacific Northwest) Stiff-hairy annual from thick fibrous roots, the stem single, sometimes rooting at the lower nodes, 1.5-4 dm. tall. Distribution: Widely introduced in North America; chiefly in eastern Washington, Oregon and California in our region. Habitat: Dry woodlands and waste ground. |
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Ranunculus californicus Appressed-hairy perennial from slender, fibrous roots, the several stems freely branched, 2-6 dm. tall, spreading but not rooting at the nodes. Distribution: Along the coast from Clatsop County, Oregon, to California. Habitat: Grassy bluffs |
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Ranunculus cooleyae (Cooley's buttercup) Scapose perennial from a thick, fibrous root, glabrous throughout. Distribution: Alaska and the Cascades of British Columbia, known in Washington from Mt. Colonel Bob in the Olympics and Del Campo Peak Snohomish county. Habitat: Damp slopes and rocky crevices at high elevations, blossoming as snow recedes. |
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Ranunculus cymbalaria (alkali buttercup, seaside buttercup) (= Ranunculus cymbalaria in Flora of the Pacific Northwest) Usually glabrous perennial from slender, fibrous roots, the stems several, one or more of them stolonous and freely-rooting, 1-4 dm. long, the others scapose, 5-30 cm. tall. Distribution: Thjroughout much of North and South America, and Eurasia. Habitat: Ditches, marshes and muddy meadowlands. |
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Ranunculus eschscholtzii (Eschscholtz's buttercup) (= Ranunculus eschscholtzii in Flora of the Pacific Northwest) Mostly glabrous, often glaucous perennial from slender, fibrous roots, the 1-several scapose stems erect, 10-20 cm. tall. Distribution: Alaska to California, east to Montana, Colorado and New Mexico Habitat: Meadow and talus slopes at mid- to high elevations in the mountains |
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Ranunculus ficaria (fig buttercup, lesser celandine) (= Ranunculus ficaria in Flora of the Pacific Northwest) Glabrous, herbaceous perennials from tuberous roots, the stems decumbent or erect, not rooting nodally; bulbils sometimes formed in leaf axils. Distribution: In scattered locations in western Washington but likely more widespread; British Columbia south to Oregon; eastern North America. Habitat: Disturbed areas often where shaded and moist. |
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Ranunculus flabellaris (yellow water buttercup) (= Ranunculus flabellaris in Flora of the Pacific Northwest) Usually glabrous perennial, the stems hollow, freely branching, floating, or creeping on mud flats and rooting at the nodes. Distribution: East side of the Cascades, British Columbia to northern California, east in Canada to Quebec. Habitat: Shallow ponds, mud flats and marshes at low elevations. |
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Ranunculus flammula (greater creeping spearwort) (= Ranunculus flammula in Flora of the Pacific Northwest) Low perennial from slender roots, the stem nearly prostrate, simple or sparingly branched, rooting at the nodes, up to 5 dm. long. Distribution: Alaska south through Washington to California, east to the Rocky Mountain States and through Canada to the Atlantic Coast; also in Europe. Habitat: Mostly in mud, often where brackish, from sea level to mid-elevations in the mountains. |
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Ranunculus gelidus (modest buttercup, arctic buttercup) Perennial with slender, fibrous roots; stems several, slender, ascending to erect, not nodally rooting, 1- or 2-flowered, scape-like, 3-9 cm. tall. Distribution: Olympic and Cascade mountains in Washington; scattered from Alaska south to Colorado in the Rocky Mountains. Habitat: Alpine. |
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Ranunculus glaberrimus (sagebrush buttercup) (= Ranunculus glaberrimus in Flora of the Pacific Northwest) Perennial from a large cluster of fleshy roots, the several stems mostly erect, 5-20 cm. long, nearly glabrous, simple or branched above. Distribution: East side of the Cascades, British Columbia to northern California, east to the Dakotas Habitat: Sagebrush desert, shrub-steppe and ponderosa pine woodlands |
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Ranunculus gmelinii (Gmelin's buttercup, small yellow water buttercup) (= Ranunculus gmelinii vars. hookeri, limosus in Flora of the Pacific Northwest) Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska south to Nevada, east to the Rocky Mountains, and across Canada to the Atlantic Coast. Habitat: Standing water up to 2 meters deep. |
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Ranunculus hebecarpus (delicate buttercup, downy buttercup) (= Ranunculus hebecarpus in Flora of the Pacific Northwest) Delicate annual with soft, fine hairs and filiform roots, the stems moderately branched, erect, 1-2.5 dm. tall. Distribution: Eastern Washington and adjacent Idaho, south to Arizona and Baja California. Habitat: Moist to rather dry hillsides and woodlands. |
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Ranunculus macounii (Macoun's buttercup) (= Ranunculus macounii vars. macounii, oreganus in Flora of the Pacific Northwest) |
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Ranunculus muricatus (spiny-fruit buttercup) (= Ranunculus muricatus in Flora of the Pacific Northwest) Mostly glabrous annual from stout, fibrous roots, the 1-several stems simple below and forked above, 1-4.5 dm. tall, often hollow. Distribution: Introduced in scattered locations in the United States; mostly west of the Cascades in Washington, Oregon and California. Habitat: Ditches and other moist places, often on cultivated land. |
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Ranunculus occidentalis (western buttercup) (= Ranunculus occidentalis in Flora of the Pacific Northwest) Stiff-hairy perennial from slender fibrous roots, the 1-several stems erect, usually hollow, freely branched, 1.5-4 dm. tall. Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California, east to Alberta and Nevada. Habitat: Moist to well-drained soil, low to mid-elevations in the mountains. |
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Ranunculus orthorhynchus (straight-beak buttercup) (= Ranunculus orthothynchus in Flora of the Pacific Northwest) Stiff-hairy perennial from thickened roots, the several stems branched, erect to decumbent, 2-6 dm. tall. Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska south to California, east to Montana and Utah. Habitat: Streambanks and moist fields to mountain meadows and slopes. |
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Ranunculus parviflorus (small-flower buttercup) (taxon is not treated in Flora of the Pacific Northwest) Distribution: Sparingly introduced to lowlands of western Washington; Washington south to California; southeastern U.S. Habitat: Roadsides, fields, urbanized settings, and other disturbed areas. |
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Ranunculus populago (mountain buttercup, popular buttercup) (= Ranunculus populago in Flora of the Pacific Northwest) Tender, glabrous perennial from clustered, fleshy roots, the 1-several stems erect, 1-3 dm. tall. Distribution: In Washington and Oregon in the Blue and Wallowa Mountains, east into Idaho and Montana, and in the Cascades in Oregon south into California Habitat: Wet areas at mid- to high elevations in the mountains |
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Ranunculus repens (creeping buttercup) (= Ranunculus repens vars. pleniflorus, repens in Flora of the Pacific Northwest) Stiff-hairy perennial from fibrous roots, the several stems decumbent, rooting at the nodes, up to 10 dm. long. Distribution: Occurring throughout Washington, but most common west of the Cascades; Alaska south to California and Utah, and from central plains of U.S. to Labrador. Habitat: Moist areas, lawns and gardens, disturbed forest understory. |
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Ranunculus sceleratus (cursed buttercup, celery-leaved buttercup) (= Ranunculus sceleratus in Flora of the Pacific Northwest) Usually glabrous annual from slender, fleshy roots, the 1-several stems erect, 2-5 dm. tall, freely branched, hollow. Distribution: Widely distributed throughout much of Washington; widely distributed throughout much of North America. Habitat: Moist meadows and boggy shoreland to semi-aquatic and often brackish areas. |
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Ranunculus testiculatus (hornseed buttercup) Small, scapose annual, finely white-woolly throughout. Achene with 2 bulges on the base, then narrowed to a straight beak 3-4 mm. long. Distribution: Introduced throughout the Pacific Northwest, especially in sagebrush. Habitat: Dry or moist disturbed soil. |
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Ranunculus triternatus (obscure buttercup) (= Ranunculus reconditus in Flora of the Pacific Northwest) Perennial from a large cluster of fleshy roots, the several stems mostly erect, 5-20 cm. long, nearly glabrous, simple or branched above. Distribution: Goldendale area, Klickitat County, Washington, south to Wasco County, Oregon. Habitat: Sagebrush slopes. |
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Ranunculus uncinatus (woodland buttercup, little buttercup) (= Ranunculus uncinatus in Flora of the Pacific Northwest) Sub-glabrous to stiff-hairy annual or perennial from coarse, fibrous roots, the single, simple, erect, hollow stem 2-6 dm. tall. Distribution: Widely distributed throughout Washington; Alaska to California, east to Montana and New Mexico. Habitat: Moist, usually shady areas, sea level to mid-elevations in the mountains. |
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