Pilostyles thurberi A. Gray, Pl. Nov. Thurb.: 326-327. 1854 sec. Bellot & Renner 2014
- =Apodanthes pringlei S. Watson ex B.L. Rob. in Bot. Gaz. 16(3): 83, t. 9. 1891 syn. sec. IPNI 1985
- =Pilostyles pringlei (S. Watson) Hemsl. in J. Linn. Soc., Bot. 31: 311. 1896 syn. sec. POWO 2019
- =Pilostyles glomerata Rose in Contr. U.S. Nati. Herb. 12: 263. 1909 syn. sec. POWO 2019
- =Pilostyles palmeri Rose in Contr. U.S. Nati. Herb. 12: 263. 1909 syn. sec. POWO 2019
- =Pilostyles pringlei (S. Watson ex B.L. Rob.) Rose in Contr. U.S. Natl. Herb. 12(7): 264. 1909, nom. superfl. syn. sec. Alvarado-Cárdenas 2017
- =Pilostyles sessilis Rose in Contr. U.S. Natl. Herb. 12(7): 264, f. 23. 1909 syn. sec. POWO 2019
- =P. covillei Rose, Contr. U.S. Natl. Herb. 12: 263. 1909 syn. sec. Bellot & Renner 2014