Ranunculus cymbalaria |
Ranunculus trilobus |
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alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
threelobe 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 reclining, hispid or sometimes glabrous. |
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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Flowers | receptacle hispid or glabrous; sepals spreading, 2.5-6 × 1.5-3 mm, glabrous; petals 5, yellow, 2-7 × 1-3 mm. |
pedicellate; receptacle hispid; sepals 5, reflexed, 3-4 × 2 mm, sparsely hispid; petals 5, 4-5 × 2-3 mm. |
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. |
ovoid, 8-9 × 6-7 mm; achenes 30-60 per head, 2 × 2 mm, faces densely tuberculate, glabrous, margin smooth; beak semicircular, hooked, 0.3 mm. |
Tuberous | roots absent. |
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Basal | and lower cauline leaf blades cordate-ovate, 3-foliolate, 5-8 × 3-6(-7) cm, leaflets again cleft or parted, leaflet base obtuse to acute, margins dentate, apex rounded to acute. |
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2n | = 16. |
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Ranunculus cymbalaria |
Ranunculus trilobus |
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Phenology | Flowering late spring–summer (May–Sep). | Flowering spring (Apr). |
Habitat | Fields and roadsides | |
Elevation | 0-100 m (0-300 ft) | |
Distribution |
Bogs; marshes; ditches; stream banks; often saline
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AL; FL; LA; SC; TX; native to Europe [Introduced in North America] |
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.) |
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Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Halodes | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Echinella |
Sibling taxa | ||
Synonyms | Halerpestes cymbalaria, R. cymbalaria var. alpinus, R. cymbalaria var. saximontanus | |
Name authority | Pursh: Fl. Amer. Sept. 2: 392. (1814) | Desfontaines: Fl. Atlant. 1: 437. (1799) |
Web links |