What is a pincushion cactus?
A pincushion cactus is a type of cactus. (1)
A pincushion cactus may refer to Escobaria, Mammillaria, or Pediocactus. (1)
What type of pincushion is the cactus?
Resources
1. https://en.wikipedia.org/wiki/Pincushion_cactus
