Silene virginica Linnaeus var. robusta Strausbaugh & Core. Phen: Jun-Jul. Hab: Mesic forest margins. Dist: E. WV south through se. KY to e. TN.
Origin/Endemic status: Endemic
Taxonomy Comments: Var. robusta Strausbaugh & Core, named from locations in e. WV, extends as well to se. KY and e. TN. It differs in its greater size and numerous pairs of cauline leaves, the leaves larger (7-15 cm long, 2-4 cm wide, vs. 7.5-10 cm long, 0.5-2 cm wide) and smaller calyx (1.5-2 cm long, vs. ca. 2.2 cm long) (Strausbaugh & Core 1952, 1978); it flowers about a month later than nearby populations of S. virginica var. virginica (B.E. Wofford, pers. comm., 2012).
Synonymy: = K1, Tn, WV; < Silene virginica L. – C, F, FNA5, G, K3, K4, S, W