Ranunculus cymbalaria |
Ranunculus glacialis |
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alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
glacier buttercup |
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Stems | dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based. |
erect or ascending from caudices, not rooting nodally, distally glabrous or brown-pilose, not bulbous-based. |
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Basal leaves | 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. |
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Basal leaf blades | reniform to broadly triangular in outline, 3-foliolate or deeply 3-parted, 1-4 × 1.6-4.4 cm, leaflets or segments 1-2x-parted, ultimate segments elliptic to oblanceolate or almost linear, margins entire or occasionally with 1-2 teeth, apex rounded to obtuse. |
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Flowers | receptacle hispid or glabrous; sepals spreading, 2.5-6 × 1.5-3 mm, glabrous; petals 5, yellow, 2-7 × 1-3 mm. |
receptacle glabrous or brown-pilose; sepals spreading, 7-12 × 4-9 mm, brown-pilose; petals initially white, usually becoming red with age, 9-15 × 7-14(-18) mm. |
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Heads of achenes | 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. |
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Tuberous | roots absent. |
roots absent. |
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Fruiting | heads hemispheric, 5-8 × 7-16 mm; fruit wall smooth, not veined, loose but not inflated, winged along suture, fruits winged achenes; achenes 2.6-3 × 1.4-2 mm, glabrous; beak persistent, lanceolate, 0.8-2.3 mm. |
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2n | = 16. |
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Ranunculus cymbalaria |
Ranunculus glacialis |
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Phenology | Flowering late spring–summer (May–Sep). | |||||
Distribution |
Bogs; marshes; ditches; stream banks; often saline
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AK; Eurasia |
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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.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||
Parent taxa | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Halodes | Ranunculaceae > Ranunculus > subg. Crymodes | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Halerpestes cymbalaria, R. cymbalaria var. alpinus, R. cymbalaria var. saximontanus | Beckwithia glacialis | ||||
Name authority | Pursh: Fl. Amer. Sept. 2: 392. (1814) | Linnaeus: Sp. Pl. 1: 553. (1753) | ||||
Web links |