Hebecarpa obscura (Benth.) J.R. Abbott in J. Bot. Res. Inst. Texas 5(1): 134. 2011 sec. Abbott & Pastore 2015
- ≡Polygala obscura Benth., Pl. Hartw.: 58. 1840 syn. sec. ???
- =Polygala obscura Benth. var. obscura, Pl. Hartw.: 58. 1840 syn. sec. POWO 2019
- =Polygala obscura var. euryptera S.F. Blake in Contr. Gray Herb. 2(47): 31, t. 1, f. 19. 1916 syn. sec. POWO 2019
- =Polygala obscura var. macrophylla Chodat in Verh. Bot. Vereins Prov. Brandenburg 58: 148. 1917 syn. sec. POWO 2019