Xerophyte

Central Spines

4-5, upper three 10 mm long, the lowest hooked and to 25 mm long, all slender acicular, smooth to somewhat pubescent, whitish yellow in youth, becoming golden yellow to brownish yellow.

Seeds

Brownish black, oval with lateral hilum, 1 mm in diameter often conspicuously strophiolate.

Roots

Fibrous.

Tubercles

In 8-13 spirals series, shining, short cylindrical, keeled ventrally, 6 mm long and 3 mm wide. Axil with a little wool, mostly naked, but with 8 white hair-like bristles up to 15 mm long.

Flowers

Funnelform, cream yellowish or pale pinkish with reddish brown mid-veins on the outer petals,15 mm long and 12 mm wide.

Stem

Solitary, sometimes clumping at base, globose to ovate, glossy green, depressed, the base often tuberous, 60 mm high and 40 mm in diameter. With watery sap.

Radial Spines

(15-)24-26, 8 mm long, nearly hair-like, smooth, yellowish white to white, semi-stiff, in the upper part of the body strongly ascending, later horizontal.

Fruits

Red, clavate, small, 8 mm long and 3 mm wide.