Turbinicarpus booleanus

Turbinicarpus mandragora

Synonyms- Echinocactus mandragora, Thelocactus mandragora, Rapicactus mandragora,

Gymnocactus mandragora, Neolloydia mandragora, Pediocactus mandragora.

Description-

Body- Usually solitary, globular to elongate, 35-50mm high, 40-60mm wide grey-green.

Root- Long turnip shaped.

Tubercles- Pyramidal.

Spines- Radials- 8-14 radiating straight white 8-15mm long.

Centrals- 1-2 erect, whitish darkening with age 18-22mm long.

Flowers- White with reddish midribs 20mm long, 25mm wide.

Fruits- Greenish-violet.

Distribution- Parras in the state of Coahuila (Mexico). Altitude 1400-1600m.

Notes-

This species is the most difficult to cultivate as it is very slow growing and can easily suffer root loss if overwatered.