Synonyms- Thelocactus lophophoroides, Neolloydia lophophoroides, Strombocactus lophophoroides,
Toumeya lophophoroides, Pediocactus lophophoroides.
Body- Solitary, globular depressed somewhat flattened, 30-35mm high 40-47mm wide green-bluish.
Tubercles- Low rounded to 2-4mm long.
Spines- Radials- 2-4 whitish or grey with darker tips more or less straight 8-9mm long.
Centrals- 1 erect straight to slightly curved, grey or whitish with darker tips 11-9mm long.
Flowers- White to slightly pink 32-35mm wide.
Fruits- Pale green sometimes with scales.
Distribution- Las Tablas in the state of San Lois Potosi (Mexico). Altitude 870-1150m.
This species is probably the most difficult to cultivate and rots easily particularly when older. Requires 10-30% Natural Gypsum added to the compost full sun and careful watering to keep plant compact.
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