Xerophyte

Habit

It has been described as solitary, but in cultivation it can also form groups with age.

Central Spines

4-6(-11) resembling the radial ones.

Description

Gymnocalycium mostii var. genseriSN|11465]]SN|22543]] is a small single headed, flattened cactus, very similar to Gymnocalycium mostiiSN|22543]]SN|11465]] subs. valnicekianum. It distinguishes for the peculiar glaucous green body (usually dark green in G. valnicekianum) and for the thinner spines, all the other characteristics are identical, namely size and form of ribs, number of spines, colour of flowers etc.

Roots

Fibrous.

Flowers

White with a reddish throat. The diameter and length are identical and are equal to 5 cm. Seedlings bloom at the age of 5-7 years.

Ribs

About 9-12 which consist of flattened protuberances, each of which finishes with a large elliptical, densely furred areola length 12 mm.

Stem

Usually globular up to 30 cm tall and 18 cm across, pale glaucous green.

Radial Spines

9-15(-20) up to 4 cm long; Varying from brownish to grey, but those near the apex are mostly reddish-brown.