Heuchera americana var. hispida
Rhodora 81: 576. 1979 ,.
Petioles glabrous or very short stipitate-glandular. Flowers: hypanthium free 1.5–2 mm, campanulate; petals purple or pink, wider than sepals, margins fimbriate. 2n = 14.
Phenology: Flowering Apr–Jun.
Habitat: Rich woods often over base-saturated granite and gneiss, or in shallow rocky soil
Elevation: 200-1300 m
Distribution
Md., N.C., Va., W.Va.
Discussion
Variety hispida occurs in the mountains and hills of western Maryland and Virginia, eastern West Virginia, and Surry County, North Carolina, where var. americana and Heuchera pubescens overlap; it is intermediate between var. americana and H. pubescens in floral characters. Variety hispida was confused with H. richardsonii for almost a century, beginning in 1849 when Gray reduced H. richardsonii to synonymy under H. hispida, after some seeds of H. richardsonii germinated among H. hispida plants in a labeled plot and later replaced them (C. O. Rosendahl et al. 1933).
Selected References
None.