Borzicactus icosagonus subsp. humboldtii (Kunth) G.J.Charles in Bradleya 30: 101. 2012
Borzicactus icosagonus subsp. humboldtii in Bradleya 30: 101. 2012
is new combination for Cactus humboldtii, Nov. Gen. Sp. (quarto ed.) 6: 66. 1823
Borzicactus icosagonus subsp. humboldtii in Bradleya 30: 101. 2012