Astrophytum myriostigma 'potosinum'
Mexico – Highlands of San Luis Potosi, Nuevo Leon, Tamaulipas.
This species is widespred
In the south distribution area, plants are described as the group of Potosinas (Villar, Cerritos in San Luis Potosi).
These southern plants have the largest flowers (6-7 cm diameter) and remain globular and short for longest time.
Frost Toler. Hardy to -6 C for short periods.
Min.Avg.Temp. 10 C.
Sun Exposure: Full sun to Light shade.