Pelecyphora, pincushion cactus or foxtail cactus is a genus of cacti, comprising 20 species. They originate from Mexico and the United States.

Common species include the Missouri foxtail cactus P. missouriensis, widespread in grassland and forest west of the Mississippi, and the spinystar P. vivipara, distributed across the US and into Canada, first described by Nuttall in 1813.

...