Heuchera villosa Michaux. Section: Holochloa. Subsection: Villosae. Crag-jangle, Rock Alumroot. Phen: Late Jun-Oct. Hab: In crevices of rock outcrops, or in thin soil over boulders, a characteristic component of the flora of high elevation cliffs and summits (to at least 1920 m), not particular about the rock type, occurring on a wide range of rock types in our area, including felsic gneisses and schists, mafic gneisses, granites, quartzites, and others, probably the most acidophilic of our taxa of Heuchera. Dist: W. VA and s. WV south through w. NC and e. TN to nw. SC, n. GA, ne. AL (primarily a Southern Blue Ridge endemic).

Origin/Endemic status: Endemic

Taxonomy Comments: See H. macrorhiza for discussion of that taxon, not included in H. villosa in this treatment.

Synonymy: = S, S13; = Heuchera villosa Michx. var. typica – Rosendahl, Butters, & Lakela (1936); = Heuchera villosa Michx. var. villosa – F, G, Tn, Va; < Heuchera villosa Michx. – RAB, W; < Heuchera villosa Michx. var. villosa – C, FNA8, K1, K3, K4, Wells (1984)

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Heliophily: 3