Xerophyte

Central Spines

Absent.

Seeds

Dull black, hat-shaped and about 1mm in diameter.

Note

Gymnocalycium albiareolatumSN|21441]]SN|25938]] was published by Rausch, in Succulenta 64(10)

The species name means 'white areoles' from Latin 'albus', white and Latin 'areola', areole.

Flowers

Funnel-shaped, slender, silver-white on the outside, pink inside (with reddish throat), outer perianth segments with a green stripe to 6.5 cm long and 4.5 cm in diameter (rarely to 6cm).

Ribs

(8-)9-11(-13), straight with well-defined chinlike protrusions to up to 1 cm in height below the areoles.

Stem

Solitary or clumping ( "var ramosum" ), spherical-flattened, to 6(-10) cm in diameter, grey-green, glaucous (brownish in the dry season), barely rising above ground level with a swollen underground root system.

Radial Spines

6-7, bent, curving back toward the body, hard, brown, 1 cm in length.

Fruits

Oval, to club shaped, blue-green, glaucous, 25-35 mm long and up to 1 cm in diameter.

Areoles

Quite large, initially with a thick, white wool, round to oval, up to 5 mm thick.