Echinocactus myriostigma var. nudus Rud.Mey. in Monatsschr. Kakteenk. 22: 136. 1912
Echinocactus myriostigma var. nudus in Monatsschr. Kakteenk. 22: 136. 1912
is basionym for Astrophytum myriostigma subvar. nudum, Cactaceae 5: 2662. 1961
is basionym for Astrophytum myriostigma var. nudum in Život v Přír. 29: 10. 1925