Ranunculus cymbalaria |
Ranunculus sulphureus |
|
---|---|---|
alkali buttercup, renoncule cymbalaire, seaside buttercup, seaside crowfoot, shore buttercup |
renoncule soufrée, sulphur buttercup |
|
Roots | slender, 0.4-1 mm thick. |
|
Stems | dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based. |
erect from short caudices, 3-20 cm, sparsely pilose to glabrous, each with 1-3 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 transversely elliptic to orbiculate, 1-3 × 1-3 cm, base obtuse to nearly truncate, margins crenate or else blades shallowly 3-lobed with crenate lateral lobes, apex rounded or rounded-apiculate. |
Flowers | receptacle hispid or glabrous; sepals spreading, 2.5-6 × 1.5-3 mm, glabrous; petals 5, yellow, 2-7 × 1-3 mm. |
pedicels sparsely brown-pilose; receptacle brown-pilose; sepals 6-8 × 3-6 mm, abaxially densely brown-hispid; petals 5(-6), 8-12 × 6-10 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. |
ovoid-cylindric or ovoid, 6-7(-9) × 5-6 mm; achenes 1.8-2.2 × 1.4-1.8 mm, glabrous or sparsely brown-hispid; beak slender, straight or curved, 0.8-1.4 mm. |
Tuberous | roots absent. |
|
2n | = 16. |
= 42, ca. 80, ca. 84, 96, ca. 98. |
Ranunculus cymbalaria |
Ranunculus sulphureus |
|
Phenology | Flowering late spring–summer (May–Sep). | Flowering late spring–summer (Jun–Sep). |
Habitat | Meadows and seepy slopes, often around late snowbeds, bogs, and streamsides | |
Elevation | 0-1100 m (0-3600 ft) | |
Distribution |
Bogs; marshes; ditches; stream banks; often saline
|
AK; BC; NF; NT; QC; YT; Greenland; Eurasia |
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.) |
Material of Ranunculus sulphureus from the Aleutian Islands has 3-lobed leaves similar to those of R. nivalis. These plants are sometimes separated as R. sulphureus var. intercedens. (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. sulphureus var. intercedens |
Name authority | Pursh: Fl. Amer. Sept. 2: 392. (1814) | Solander: in C. J. Phipps, Voy. North Pole, 202. (1774) |
Web links |