Buchnera pusilla Kunth, Nov. Gen. Sp. (quarto ed.) 2: 340. 1818 ["1817"] sec. Morawetz & Christenhusz 2011
- =Buchnera lithospermifolia Kunth, Nov. Gen. Sp. (quarto ed.) 2: 341. 1818 ["1817"] syn. sec. Morawetz & Christenhusz 2011
- =Buchnera tinctoria Bertol. in Novi Comment. Acad. Sci. Inst. Bononiensis 4: 426. 1840 syn. sec. Morawetz & Christenhusz 2011
- =Buchnera pilosa Benth., Bot. Voy. Sulph.: 144. 1845 ["1844"] syn. sec. Morawetz & Christenhusz 2011
- =Buchnera major Pol. in Linnaea 41: 588. 1877 syn. sec. Morawetz & Christenhusz 2011
- =Buchnera elongata Hemsl., Biol. Cent.-Amer., Bot. 2: 457. 1881 syn. sec. ???
- =Buchnera mexicana Hemsl., Biol. Cent.-Amer., Bot. 2(12): 457. 1882 syn. sec. Morawetz & Christenhusz 2011
- =Buchnera mexicana var. minor Hemsl., Biol. Cent.-Amer., Bot. 2: 457. 1882 syn. sec. Morawetz & Christenhusz 2011
- =Buchnera minor (Hemsl.) L. Riley in Bull. Misc. Inform. Kew 1923: 117. 1923 syn. sec. Morawetz & Christenhusz 2011