Xerophyte

Central Spines

lacking.

Roots

Long, fat, tuberose taproot.

Flowers

Diurnal, scented, funnelform, yellow, pink, orange or red, up to 4,5 cm long and in diameter.

Ribs

16 to 17, straight or spiralled.

Stem

Globose, dull green, thick and growing mostly underground, but the stem of the plant in cultivation is usually globular or ovoidal and aerial. Dimension

Radial Spines

4 to 7 (or more), flatly spreading, yellow to white with black tips, straight, subulate, dagger‑shaped, up to 3 cm (or more) long, though variable from plant to plant.

Fruits

Green, small, globose, semidry and dehiscent.

Areoles

Oval filled, with grey wool in youth.