About Ranunculus peduncularis Sm.
Ranunculus peduncularis Sm. is a tuft-forming perennial herb that grows from a rhizome, reaching 10–50 cm (3.9–19.7 in) in height. Its leaves are round, 6–8 cm in diameter, and deeply incised to form a compound structure of three leaflets. Each leaflet is further split into two to three lobes, and leaf petioles can grow up to 20 cm (7.9 in) long. Its flowers reach 3½ cm (1.4 in) in diameter, and are borne singly or in groups of two or three per stem. Flowers have 10 to 22 oblong, glossy, rich yellow petals. The variety Ranunculus peduncularis var. erodiifolius has more deeply cut leaves with narrower leaf segments. This species is native to Chile and Argentina, where its range extends from the central northern cordilleras south to Tierra del Fuego. It grows on grassy stream banks, in meadows with scrub, and along woodland margins, occurring from sea level up to 2,500 m (8,200 ft), with elevation limits varying by latitude. In Argentina, it has been recorded in the provinces of Chubut, Mendoza, Neuquen, Rio Negro, Santa Cruz, and Tierra del Fuego. In Chile, it occurs in Coquimbo, Valparaiso, O'Higgins, Maule, Bio Bio, Araucania, Los Lagos, Aisen, Magallanes, and Region Metropolitana.