Ferocactus glaucescens (DC.) Britton & Rose, Cactaceae 3: 137. 1922
Ferocactus glaucescens, Cactaceae 3: 137. 1922
is new combination for Echinocactus glaucescens in Mém. Mus. Hist. Nat. 17: 115. 1828
Ferocactus glaucescens, Cactaceae 3: 137. 1922