Buchnera obliqua Benth., Prodr. 10: 498. 1846 sec. Morawetz & Christenhusz 2011
- =Buchnera pilosa var. arizonica A. Gray in Proc. Amer. Acad. Arts 19: 92. 1884 syn. sec. Morawetz & Christenhusz 2011
- =Buchnera arizonica (A. Gray) Pennell in Notul. Nat. Acad. Nat. Sci. Philadelphia 43: 8. 1940 syn. sec. Morawetz & Christenhusz 2011