familyRanunculaceae
genusRanunculus
subgenusRanunculus subg. Ranunculus
sectionRanunculus sect. Hecatonia
speciesRanunculus sceleratus
Ranunculus sceleratus var. multifidus
in J. Torrey & A. Gray, Fl. N. Amer. 1: 19. 1838.
Endemic
Synonyms: Ranunculus sceleratus subsp. multifidus (Nuttall) Hultén
Treatment appears in FNA Volume 3.
Leaf blades always parted (often deeply so), segments lobed or parted, margins deeply crenate or lobulate. Achene faces smooth. 2n = 64.
Phenology: Flowering spring–summer (Mar–Sep).
Habitat: Wet ground or shallow water, in bogs and ponds, on shores of lakes and rivers
Elevation: 0-2600 m
Distribution
Alta., B.C., Man., N.W.T., Ont., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Iowa, Minn., Mont., Nebr., Nev., N.Mex., N.Dak., Oreg., S.Dak., Utah, Wash., Wyo.
Discussion
Reports of Ranunculus sceleratus var. multifidus for eastern Quebec and New Brunswick are errors for R. sceleratus var. sceleratus.
Selected References
None.
Lower Taxa
None.