Xerophyte

Habit

Solitary, or sparsely clumping.

Seeds

About 1 mm.

Flowers

White to very pale yellow with a typical silky shine, 6-7,5 long and 7-9 cm in diameter. Stigma lobes 8-10.

Blooming Season

Early summer to autumn in succession.

Spines

12-16 per areole; Central spines up to 4 per areole, curved or slightly hooked, principal central spine thin more or less flattened, 5-10 cm long and 0,4-3 mm across, more or less flexible.

Ribs

typically 13 ( to 17), undulate to deeply crenate, tuberculate.

Stem

Spheric to ovoid, dark green 10-30 × 7.5-20 cm.

Fruits

Green, yellow-green, or olive, 20-45 long and 10-35 mm across.

Areoles

1-3 cm apart, young ones with yellow felt.