Ranunculus cymbalaria |
Ranunculus macounii |
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alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
Macoun's buttercup, renoncule de Macoun |
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Roots | never tuberous. |
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Stems | dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based. |
prostrate to nearly erect, often rooting nodally, hirsute or glabrous, base not bulbous. |
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 | 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. |
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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 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 | 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. |
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. |
Tuberous | roots absent. |
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2n | = 16. |
= 32, 48. |
Ranunculus cymbalaria |
Ranunculus macounii |
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Phenology | Flowering late spring–summer (May–Sep). | Flowering spring–summer (May–Sep). |
Habitat | Meadows, depressions in woodlands, ditches, edges of streams and ponds, on wet soil or emergent from shallow water | |
Elevation | 0-2900 m (0-9500 ft) | |
Distribution |
Bogs; marshes; ditches; stream banks; often saline
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AK; AZ; CA; CO; ID; MI; MN; MT; ND; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; MB; NF; NT; ON; QC; SK; YT
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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.) |
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Halodes | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus |
Sibling taxa | ||
Synonyms | Halerpestes cymbalaria, R. cymbalaria var. alpinus, R. cymbalaria var. saximontanus | R. macounii var. oreganus |
Name authority | Pursh: Fl. Amer. Sept. 2: 392. (1814) | Britton: Trans. New York Acad. Sci. 12: 3. (1892) |
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