Ferocactus glaucescens, the glaucous barrel cactus 9cm pot

Ferocactus glaucescens, the glaucous barrel cactus, is a species of flowering plant in the family Cactaceae, native to the limestone hills of Hidalgo, endemic to México. It is a spherical or cylindrical cactus growing to 60 cm in diameter, with long yellow spines and yellow flowers in summer.