Ranunculus cymbalaria |
Ranunculus gelidus |
|
---|---|---|
alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
arctic buttercup, modest buttercup, wetslope buttercup |
|
Roots | slender, 0.5-1 mm thick. |
|
Stems | dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based. |
erect or decumbent from short caudices, 3-22 cm, glabrous, each with 1-5 flowers. |
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. |
persistent, blades cordate or reniform, 3-parted, 0.5-1.8 × 0.8-3 cm, segments again lobed, base truncate or nearly cordate, apices of segments rounded. |
Flowers | receptacle hispid or glabrous; sepals spreading, 2.5-6 × 1.5-3 mm, glabrous; petals 5, yellow, 2-7 × 1-3 mm. |
pedicels pubescent or glabrous; receptacle glabrous or pubescent; sepals 3-5 × 1-4 mm, pubescent or glabrous; petals 5, 3-6 × 1-5 mm; nectary scale glabrous. |
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. |
cylindric to ovoid-cylindric, 4-13 × 4-6 mm; achenes 1.2-2.4 × 0.8-2 mm, glabrous; beak subulate, curved or hooked, 0.4-0.8 mm. |
Tuberous | roots absent. |
|
2n | = 16. |
= 16. |
Ranunculus cymbalaria |
Ranunculus gelidus |
|
Phenology | Flowering late spring–summer (May–Sep). | Flowering late spring–summer (Jun–Aug). |
Habitat | Open arctic and alpine slopes | |
Elevation | 0-4000 m (0-13100 ft) | |
Distribution |
Bogs; marshes; ditches; stream banks; often saline
|
AK; CO; ID; MT; OR; UT; WA; WY; AB; BC; NT; YT; Asia
|
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.) |
Plants with small achenes are often separated as Ranunculus verecundus. Achene size varies continuously over the range given, however, and it is not correlated with the minor shape difference mentioned by L. D. Benson (1948). (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. Epirotes |
Sibling taxa | ||
Synonyms | Halerpestes cymbalaria, R. cymbalaria var. alpinus, R. cymbalaria var. saximontanus | R. gelidus subsp. grayi, R. grayi, R. verecundus |
Name authority | Pursh: Fl. Amer. Sept. 2: 392. (1814) | Karelin & Kirilov: Bull. Soc. Imp. Naturalistes Moscou 15: 133. (1842) |
Web links |