Richardia humistrata (Cham. & Schltdl.) Steud., Nom. Bot., ed. 2: 459. 1841 sec. Borhidi 2006
- ≡Richardsonia humistrata Cham. & Schltdl. in Linnaea 3(4): 353-354. 1828 syn. sec. Borhidi 2006
- =Richardsonia haenkeana DC., Prodr. 4: 569. 1830 syn. sec. Borhidi 2006
- =Schiedea mexicana Bartl. ex DC., Prodr. 4: 569. 1830 syn. sec. Borhidi 2006
- =Richardia haenkeana (DC.) Steud., Nomencl. Bot. (ed. 2): 459. 1841 syn. sec. Borhidi 2006