Description: Large, depressed-globular cactus,
often clumping and group-forming
Stem: Each head is 5-8 cm tall and 6 to 10(-18) cm in diameter
depressed globose often flattened apically.
large, shiny green, 20-30 (60) mm wide, rounded on top, pentaedrical at the
base, always broader than rounded , without glands, the tubercles axil
is densely woolly.
Central spines: Absent.
Radial spines: 5 to 9 unequal, upper and lower one short,
laterals longer, stout, reflexed, 12-26 mm long never porrect, but adpressed to the body.
Yellowish white with dark tips at first, later darker.
Flowers: Sweet smelling large 4 to 8 cm creamy- yellow, Stamens
yellow to purple.
Blooming season: Produced in
late summer to autumn.
Fruits: Very big, oblong, opaque green, juicy, (ca. 4 cm long, 1 cm