Brain cactus (Stenocactus crispatus) belongs to the Cactaceae (the Cactus family). It is a spherical cactus that is distributed to Hidalgo, Queretaro, Veracruzm, Mexico, Oaxaca and Puebla, central Mexico. It is a solitary plant and grows in xerophile open pinyon-juniper woodland. The stem is globose or obovoid, somewhat depressed at apex, bluish-green, dark matt green or dark olive-green, up to 20 cm tall, 10 cm wide. It has from 30-60 ribs. It has 1-3 areoles in each ribs and usually 4-6 flattened, whitish to brownish radial spines. The flowers are pale pink with a purplish midrib, up to 4 cm long, funnel-shaped, and bloom in late spring to summer. The fruits are obovoid reddish to graysh, dry at maturity.