familyRanunculaceae
genusRanunculus
subgenusRanunculus subg. Ranunculus
sectionRanunculus sect. Ranunculus
speciesRanunculus macranthus
Ranunculus macranthus
Linnaea 21: 585. 1848.
EndemicIllustrated
Synonyms: Ranunculus fascicularis var. cuneiformis (Small) L. D. Benson
Treatment appears in FNA Volume 3.
Stems erect or decumbent, never rooting nodally, hispid, base not bulbous. Roots tuberous. Basal leaf blades ovate in outline, 3-5-foliolate, 3.8-10 × 2.7-9 cm, leaflets 1×-lobed, ultimate segments narrowly elliptic to oblanceolate, margins entire or with few teeth, apex broadly acute to rounded-obtuse. Flowers: receptacle hispid; sepals spreading or weakly reflexed ca. 1 mm above base, 7-10 × 3-5 mm, hispid; petals 10-22, yellow, 12-22 × 4-9 mm. Heads of achenes globose to cylindric, 8-14 × 8-10 mm; achenes 2.2-4.2 × 2.8-3.4 mm, glabrous, margin forming narrow rib 0.4-0.6 mm wide; beak usually persistent, filiform from deltate base, straight, 2-4 mm. 2n = 32.
Phenology: Flowering late winter–spring (Mar–May).
Habitat: Riverbanks and wet meadows
Elevation: 0-400 m
Discussion
Selected References
None.
Lower Taxa
None.