Penstemon australis Small. Southern Beardtongue, Sandhill Beardtongue. Phen: May-Jul; Jul-Aug. Hab: Longleaf pine sandhills, pine flatwoods, dry hammocks, dry sandy roadsides, woodland margins. Dist: Se. VA south to c. peninsular FL, west to s. and wc. AL, primarily on the Coastal Plain, but not uncommon westward into the Piedmont and lower Mountains, and extending in the interior into c. TN.
Origin/Endemic status: Endemic
Syn: = Fl6, FNA17, K1, K3, K4, S, Clements, Baskin, & Baskin (1998), Estes (2012), Pennell (1935); = Penstemon australis Small ssp. australis – Bennett (1963); < Penstemon australis Small – C, F, G, RAB, Va, W, WH3