Xerophyte

Derivation of Name

“minor” Latin, smaller, lesser. In reference to the very small body size of the this plant.

Flowers

Pale yellow to orange yellow sometimes reddish in the outside.

Spines

9-11 all radial, dark violet-brown, later grey, lying flat to the stem.

Ribs

10.

Stem

Less than 2 cm tall, and to 1.3 cm wide (a little taller in cultivation), sparingly clustering, greyish-green to purple-brown. R. minor has the smallest stem in the whole R. pygmaea group.

Areoles

Elongate with short dark brown wool.