Thelocactus bicolor subsp. commodus (R.Haas) Doweld in Sukkulenty 2(1): 30. 1999 Thelocactus bicolor subsp. commodus (R.Haas) Doweld in Sukkulenty 2(1): 30. 1999is new combination for Thelocactus bicolor var. commodus R.Haas in Kakteen And. Sukk. 39: 87. 1988Taxon for this nameThelocactus bicolor subsp. commodus (R.Haas) Doweld