Brittonrosea phyllacantha (Mart.) Speg. in Anales Soc. Ci. Argent. 96: 69. 1923 Brittonrosea phyllacantha (Mart.) Speg. in Anales Soc. Ci. Argent. 96: 69. 1923is new combination for Echinocactus phyllacanthus Otto & A.Dietr. in Allg. Gartenzeitung 4: 201. 1836Taxon for this nameBrittonrosea phyllacantha (Mart.) Speg.