Echinomastus acunensis W. T. Marshall, Saguaroland Bull. 7. 34; cf. Gray Herb. Card Cat., 1953
Echinomastus centralis (Coulter) Y. Ito, Cacti, 1952, 102; cf. Gray Herb. Card Cat., 1952Echinomastus dasyacanthus (Engelmann) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 150, 1922
Echinomastus dasyacanthus v. carrizalensisEchinomastus durangensis (Ruenge) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 152, 1922
Echinomastus durangensis v. mapimiensisEchinomastus erectocentrus (J.M. Coulter) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 148-149, f. 154, 1922
Echinomastus erectocentrus v. acunensis (Marshall) H. Bravo Hollis, Cact. Suc. Mex., 25 (3): 65: 1980Echinomastus erectocentrus v. erectocentrus
Echinomastus gautii (L.D. Benson) A. Mosco & C. Zanovello, Bradleya, 15: 81: 1997Echinomastus intertextus (Engelmann) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 149-150, f. 156, 1922
Echinomastus intertextus v. carrizalensisEchinomastus intertextus v. dasyacanthus (Engelmann) Backeberg, Cactaceae (Backeberg) 5: 2832., 1961
Echinomastus johnsonii (Engelmann) E.M. Baxter, Calif. Cactus 75, f. sn, 1935Echinomastus johnsonii v. johnsonii
Echinomastus johnsonii v. lutescens (Parrish) Wiggins, Veg. Fl. Sonoran Des. 2: 1011., 1964Echinomastus johnsonii v. multicolor
Echinomastus kakui Backeberg, Descr. Cact. Nov. 3. 6., 1963Echinomastus krausei (Hildmann) Borg
Echinomastus laui G. Frank & E. Zecher, Cact. Succ. J. (U. S. A.), 50 (4): 188, 1979Echinomastus macdowellii (Rebut ex Quehl) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 151, 1922
Echinomastus mapimiensis Backeberg, Cact. & Succ. Journ. Brit. 15. 68., 1953Echinomastus mariposensis Hester, Desert Pl. Life, 17. 59; cf. Gray Herb. Card Cat., 1945
Echinomastus uncinatus (Galeotti) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 358, 1935Echinomastus unguispinus (Engelmann) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 150-151, f. 155, 1922
Echinomastus unguispinus ssp. laui (G. Frank & Zecher) C.E. Glass, Guía Identific. Cact. Amenazadas México, 1: Echinom/un ssp. laui (1998 publ.): 1997Echinomastus unguispinus v. crassihamatus Kaku & Y. Ito, Y. Ito, The Cactaceae: 480, without type, 1981
Echinomastus unguispinus v. durangensis (Ruenge) H. Bravo Hollis, Cact. Suc. Mex., 25 (3): 65: 1980Echinomastus unguispinus v. minimus A.B. Lau, Kakt. And. Sukk., 34 (9): 206, 1983
Echinomastus unguispinus v. unguispinus (Engelmann) E. Britton & A. RoseEchinomastus warnockii (L. D. Benson) C. Glass & R.A. Foster, Cact. Succ. J. lU. S. A.), 47 (5) 222, 1975
Echinomastus warnockii f. kakuiEchinomastus warnockii f. pallidus
