Tephrocactus alexanderi var. subsphaericus (Backeb.) Backeb. in Cactus (Paris) 38: 250. 1953
Tephrocactus alexanderi var. subsphaericus in Cactus (Paris) 38: 250. 1953
is new combination for Tephrocactus subsphaericus, Kaktus-ABC: 410. 1936 ["1935"]
Tephrocactus alexanderi var. subsphaericus in Cactus (Paris) 38: 250. 1953
Taxon for this name