Notocactus tephracanthus var. depressus (Speg.) Stuchlík in Repert. Pl. Succ. 44: 14. 1993 Notocactus tephracanthus var. depressus (Speg.) Stuchlík in Repert. Pl. Succ. 44: 14. 1993Taxon for this nameNotocactus tephracanthus var. depressus (Speg.) Stuchlík