Xerophyte

Central Spines

Usually absent or one.

Seeds

Cap-shaped, black to 1,4 x 1,4 mm. Hilum corky, seed-coat minutely roughened under a lens.

Flowers

Spring-summer.

Stem

Simple, depressed-spherical up to 12 cm tall and 17 cm in diameter, dark green

Radial Spines

10-14 varable more or less addpressed or slightly projecting, unequal in length, approximatively 5-30 mm long, mostly curved, whitish, yellow-white, grey or pale brown

Fruits

Barrel-shaped, redish, 0,5-1,5 cm long.

Areoles

Whitish.