Xerophyte

Roots

Has a large tap root below the surface of the compost.

Tubercles

This subspecies has poorly developed tubercles.

Flowers

White or (rarely) pinkish white at the apex, 18 mm long, 3,5 cm in diameter. Stigma lobes pink.

Blooming Season

Blooms come in multiple periods from late winter to early fall.

Spines

0-4 paper-like, thick and spongy (sometime as many as 6) up to 4 cm long

Stem

Fan shaped, flattened on top, depressed centrally along the line meristem, up to 4,5 cm thick, with a woolly spiny apex.

Fruits

Small smooth, hidden in the apical wool, splitting when ripe.