Malacocarpus caespitosus (Speg.) Hosseus in Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 9: 137. 1939
Malacocarpus caespitosus in Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 9: 137. 1939
is new combination for Echinocactus caespitosus in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 495. 1905