Hydrangea radiata Walter. Phen: May-Jul. Hab: Rocky forests and rock outcrops, often common and conspicuous on roadbanks. Dist: A Southern Appalachian endemic: sw. NC (in the valley of the French Broad River and to its southwest), nw. SC, ne. GA, and se. TN, with outliers (perhaps escaped from cultivation?) in Stokes County, NC and Calhoun County, SC
Origin/Endemic status: Endemic
Other Comments: This attractive species is especially typical of the escarpment gorge region near the tricorner of NC, SC, and GA, in the vicinity of the towns of Highlands, Cashiers, and Rosman, NC, where it is conspicuous along roadbanks.
Synonymy: = FNA12, K1, K3, K4, S, Tn, W, Pilatowski (1982); = Hydrangea arborescens L. ssp. radiata (Walter) E.M.McClint. – RAB, McClintock (1957)