Sisyrinchium longipes (E.P. Bicknell) Kearney & Peebles in J. Wash. Acad. Sci. 29: 474. 1939 sec. Espejo-Serna & López-Ferrari 2008
- ≡Hydastylus longipes E.P. Bicknell in Bull. Torrey Bot. Club 27: 382-383. 1900 syn. sec. Espejo-Serna & López-Ferrari 2008