Echinocereus nicholii subsp. llanuraensis Rutow in Echinocereenfreund 8: 61. 1995 sec. Guzmán & al. 2003
- =Echinocereus engelmannii subsp. llanuraensis (Rutow) Felger in Proc. San Diego Soc. Nat. Hist. 35: 20. 1999 syn. sec. ???
- =Echinocereus llanuraensis (Rutow) W. Blum & D. Felix in Echinocereenfreund 15: 16. 2002 syn. sec. Hunt & al. 2006