Thelocactus rinconensis subsp. freudenbergeri (R.Haas) Mosco & Zanov. in Cactaceae Consensus Init. 7: 18. 1999
Thelocactus rinconensis subsp. freudenbergeri in Cactaceae Consensus Init. 7: 18. 1999
is new combination for Thelocactus rinconensis var. freudenbergeri in Kakteen And. Sukk. 43(5): 97. 1992