Xerophyte

Central Spines

4 (or sometimes 2) more robust 2 – 25(-35) mm long forming a cross, dark reddish-violet with a brown base, becomig grey as they age.

Seeds

Dull black, finely tubercled. 0,8 mm long, 1 mm wide, 0,9 mm thick.

Description

Small solitary cactus.

Flowers

Approx 3 cm long and wide and stand near the top. Yellow or pale yellow, with a typical glossy shine. Sepals thin, the outer ones often red tinged at the tips. Floral tube with small scales, and white wool. Stamens yellow, stigma lobes dark purple.

Blooming Season

Sping to summer

Ribs

19-26, approx 5-11 mm wide, vertical or spiralling and slightly mammillate.

Stem

Globular, 10-12 cm wide, up to 18 cm tall, apex depressed. Epidermis dark green.

Radial Spines

10-16 acicular, radiating, yellowish-brown to greyish-white 5 – 14 mm long

Fruits

18-25 mm long, olive-green turnig reddish at maturity, with 70-90(-200).

Areoles

2-4 mm in diameter, very closely set ( 3-6 mm apart) filled with abundant white wool, especially those near the stem apex.