Xerophyte

Central Spines

Usually absent or 1 erected

Seeds

Dark brown.

Description

G. achirasense is a (usually) solitary geophytic cactus.

Flowers

Are some of the largest in this genus, often growing larger than the plant!, 6 up to 7 cm long and broad, whitish, pale pink to lavender, with a darker mid-strip.

Ribs

12-15

Stem

Flattened or globular, dark-green, grey-green to olive green, 5-6 cm in diameter up to 5 cm in height, but in cultivation it can become 7-8 cm high (or more) over the years.

Radial Spines

Stout, aggressive, 10 up to 12, but usually fewer in young plants, bent against the body.

Fruits

Green