Heuchera missouriensis Rosendahl; H. parviflora var. rugelii (Shuttleworth ex Kunze) Rosehdahl, Butters & Lakela

Leaves: petiole sparsely to densely long stipitate-glandular; blade surfaces sparsely to densely long stipitate-glandular abaxially, sparsely short stipitate-glandular adaxially, hairs 0.7-2.5 mm. Hypanthia densely long stipitate-glandular. 2n = 14.

Flowering Jul-Sep. Shaded or north-facing sandstone or limestone ledges or rock undercuts; 300-800 m; Ala., Ill., Ind., Ky., Miss., Mo., N.C., S.C., Tenn., Va., W.Va.

Variety parviflora is sparsely to densely long stipitate-glandular on petioles, peduncles, and abaxial leaf surfaces. It is the more widespread variety in the species, occupying a large area in the southern Appalachian Mountains and Interior Plateau east of the Mississippi River and in Missouri.