Xerophyte

Central Spines

1 per areole, solitary, white or pale with brown tips, 4 to 8 cm long, more or less flattened, porrect, rigid and very sharp.

Seeds

Obovate, 1,5 mm long, brownish-grey, shining, finely punctate.

Flowers

Large white or pink (the largest of the genus).

Ribs

Up to 35, wavy with a triangular section, somewhat crenate;

Stem

Flattened depressed-globose to short cylindrical, light green, 10-12 cm in diameter and tall.

Radial Spines

5 or 6 short yellowish spines, the upper ones longer, up to 3 cm long.

Fruits

becoming dry.

Areoles

With white felt;