Echinocactus urselianus Placement status: unresolved name – to be further revisedEchinocactus urselianus Monv. in Salm-Dyck, Cact. Hort. Dyck., 1849: 34. 1850 sec. Britton & Rose 192211. Britton, N. L. & Rose, J.N. 1922: Cactaceae 3Content