Trepocarpus aethusae Nuttall ex A.P. de Candolle. Phen: May-Jun. Hab: Rich moist forests, calcareous glades, sometimes weedy in disturbed soils. Dist: Nc. NC south to Panhandle FL and AL, west to e. TX, north in the interior to w. TN, w. KY, AR, and se. OK. Nelson (1993) states that despite "something of a reputation as a rarity", Trepocarpus is "a reasonably successful weed".
Origin/Endemic status: Endemic
Synonymy: = Ar, C, Fl7, FNA, GW2, Il, K1, K3, K4, MC, Mo2, NcTx, Ok, RAB, Tn, Tx, WH3; = n/a – F, G