Ranunculus cooleyae |
Ranunculus cymbalaria |
|
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Cooley's buttercup |
alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
|
Stems | erect from short caudices, not rooting nodally, glabrous, not bulbous-based. |
dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based. |
Basal leaves | blades circular to reniform in outline, 3-5-parted, 0.8-3.8 × 1.7-6.9 cm, segments again lobed, ultimate segments elliptic or oblong, margins crenate, apex rounded; cauline leaf 0-1, scalelike. |
simple and undivided, blades oblong to cordate or circular, 0.7-3.8 × 0.8-3.2 cm, base rounded to cordate, margins crenate or crenate-serrate, apex rounded. |
Flowers | receptacle glabrous; sepals spreading, yellow, 7-11 × 4-7 mm, glabrous; petals 11-15, yellow, 8-12 × 3-5 mm. |
receptacle hispid or glabrous; sepals spreading, 2.5-6 × 1.5-3 mm, glabrous; petals 5, yellow, 2-7 × 1-3 mm. |
Heads of achenes | hemispheric or spheric, 7-8 × 9-10 mm; achenes 2.4-4.6 × 1.2-2.2 mm, glabrous; beak persistent, filiform, hooked distally, 1-1.8 mm. |
long-ovoid or cylindric, 6-12 × 4-5(-9) mm; achenes 1-1.4(-2.2) × 0.8-1.2 mm, glabrous; beak persistent, conic, straight, 0.1-0.2 mm. |
Tuberous | roots absent. |
roots absent. |
2n | = 16. |
= 16. |
Ranunculus cooleyae |
Ranunculus cymbalaria |
|
Phenology | Flowering late spring–summer (Jun–Aug). | Flowering late spring–summer (May–Sep). |
Habitat | Slopes near persistent snowbanks | |
Elevation | 500-1800 m (1600-5900 ft) | |
Distribution |
AK; WA; BC
|
Bogs; marshes; ditches; stream banks; often saline
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Discussion | Various Navaho groups used Ranunculus cymbalaria as a venereal aid, an emetic, and a ceremonial medicine. The Kawaiisu used it as a dermatological aid (D. E. Moerman 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Arcteranthis | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Halodes |
Sibling taxa | ||
Synonyms | Arcteranthis cooleyae, Kumlienia cooleyae | Halerpestes cymbalaria, R. cymbalaria var. alpinus, R. cymbalaria var. saximontanus |
Name authority | Vasey & Rose ex Rose: Contr. U.S. Natl. Herb. 1: 289. (1894) | Pursh: Fl. Amer. Sept. 2: 392. (1814) |
Web links |