Heuchera americana var. americana
IllustratedEndemic
Synonyms: Heuchera americana var. brevipetala Fernald Heuchera americana var. heteradenia Fernald Heuchera americana var. subtruncata Rydberg Heuchera calycosa Heuchera curtisii Heuchera curtisii var. crenata Heuchera lancipetala
Petioles glabrous or very short to sparsely long stipitate-glandular. Flowers: hypanthium free 0.6–1.5 mm, urceolate; petals greenish, white, or pink, narrower than sepals, margins entire or finely dentate. 2n = 14.
Phenology: Flowering Apr–Jun.
Habitat: Rich woods often over base-saturated granite and gneiss, or in shallow, rocky soil
Elevation: 70-1300 m
Distribution
Ont., Ala., Ark., Conn., Del., Ga., Ill., Ind., Ky., La., Md., Mich., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Va., W.Va.
Discussion
Variety americana is widely distributed from Connecticut to Georgia and from southern Ontario and Ohio to Oklahoma and northwestern Louisiana. It intergrades with Heuchera pubescens and H. richardsonii where their ranges overlap, but not with H. longiflora, H. parviflora, or H. villosa, which also share overlapping ranges with it.
Selected References
None.
Lower Taxa
None.