Xerophyte

Central Spines

Usually absent, but occasionally 1 or 2 stronger and darker.

Roots

Fat tuberose tap root.

Flowers

Golden yellow. It's supposed to be free flowering but plant start flowering only when 4-5 years old.

Ribs

Not very prominent, vertical and shortly tuberculated.

Stem

3-6 cm in diameter, 4-10 cm tall, short columnar, somewhat woolly, especially near the crown of the plant. Epidermis glaucous-green to dark purplish red coloured in full sun.

Radial Spines

12-20 or more, short up to 1 cm (usually less) very fine, flexible, whitish and almost pectinated.

Areoles

Fluffy white.