Cheiridopsis umbrosa S.A.Hammer & Desmet in Cact. Succ. J. (Los Angeles) 74: 114. 2002 Cheiridopsis umbrosa S.A.Hammer & Desmet in Cact. Succ. J. (Los Angeles) 74: 114. 2002Taxon for this nameCheiridopsis umbrosa S.A.Hammer & Desmet in Cact. Succ. J. (Los Angeles) 74: 114. 2002