Echinofossulocactus recurvus var. campylacanthus Lawr. in Gard. Mag. (London) 17: 318. 1841 Echinofossulocactus recurvus var. campylacanthus Lawr. in Gard. Mag. (London) 17: 318. 1841Taxon for this nameEchinofossulocactus recurvus var. campylacanthus Lawr.