Turbinicarpus lophophoroides

Turbinicarpus knuthianus

Synonyms- Thelocactus knuthianus, Echinocactus knuthianus, Gymnocactus knuthianus, Neolloydia knuthianus,

Pediocactus knuthianus.

Description-

Body- Usually solitary, slightly depressed globular, 30-60mm high 35-70mm wide green-bluish.

Root- Taproot.

Tubercles- Conical to 5-7mm long.

Spines- Radials- 18-20 white radiating slender, straight 6-8mm long.

Centrals- 1-2 white slender, straight to slightly curving up 10-16mm long.

Flowers- Light magenta with darker midrib 23-28mm long, 18-25mm wide.

Fruits- Yellowish-green nearly round 7-9mm long and 7-8mm wide.

Distribution- Guadalcazar in the state of San Lois Potosi (Mexico). Altitude 1500-2100m.

Notes-

This species is easy to cultivate and fast growing but susceptible to rot. Requires full sun, careful watering and good ventilation to keep plant compact.