Echinocereus claviformis Placement status: name of verified uncertain applicationEchinocereus claviformis J.N.Haage in Preis-Verz. Cact.: 22. 1859 sec. Britton & Rose 192211. Britton, N. L. & Rose, J.N. 1922: Cactaceae 3=Cereus claviformis Regel & Klein bis, Index Seminum [St. Petersburg (Petropolitanus)] 1860: 46. 1860 syn. sec. Britton & Rose 192222. Britton, N. L. & Rose, J.N. 1922: Cactaceae 3Content