Strombocactus disciformis is a rare geophyte, usually solitary. It is found in Mexico (Quetaro, Hidalgo and Guanajuato). It occurs in 19 known localities, and is experiencing a decline in mature individuals due to illegal over collection.It grows in mato rral on steep, limestone cliffs and slopes, mudrock alluvial cliffs along stream beds or nearly vertical canyon walls. Illegal collection for the ornamental plant trade is an increasing threat. This cactus is found in the Mexican trade of ornamental plants.