Pennellia longifolia (Benth.) Rollins in Rhodora 62(733): 16. 1960 sec. Rollins 1993
- ≡Streptanthus longifolius Benth., Pl. Hartw.: 10. 1839 syn. sec. Bailey & al. 2007
- =Thelypodium longifolium (Benth.) S. Watson, Botany (Fortieth Parallel): 25. 1871 syn. sec. Bailey & al. 2007
- =Thelypodium anisopetalum Greene in Pittonia 3(17C): 247. 1897 syn. sec. Rollins 1993
- =Heterothrix longifolia (Benth.) Rydb. in Bull. Torrey Bot. Club 34(8): 435. 1907 syn. sec. Bailey & al. 2007
- =Lamprophragma longifolium (Benth.) O.E. Schulz, Pflanzenr. (Engler) IV. 105(Heft 86): 299. 1924 syn. sec. Bailey & al. 2007
- =Pennellia mcvaughii Rollins in Taxon 28(1): 24-25. 1979 syn. sec. Bailey & al. 2007
- =Pennellia hunnewellii Rollins in Contr. Gray Herb. 210: 10-12. 1980 syn. sec. Bailey & al. 2007