Xerophyte

Roots

Thick, fleshy taproot.

Flowers

Large yellow, with a tinge of orange or brownish-yellow, from near stems bases.

Blooming Season

Blooms profusely in spring.

Spines

Tiny, pectinated less than 1 mm long.

Stem

Cylindrical, dark brownish-green coloured, but green in the new growth, and only about as thick as a pencil (1-1,2 cm in diameter). It would appear that in cultivation these plants grow larger, elongate and cluster more vigorously than in habitat.

Areoles

Thin, elogate, brown felted.