[Heil K. D., Porter J. M., Pediocactus, Flora of North America North of Mexico, Oxford University Press, 2003a, tom 4, s. 211–216]
A description of the genus and a species key, with separate accounts of stems, spines, flowers, fruits and seeds. It includes habitats, ranges and elevational ranges. Older treatments of rank and synonyms reflect the state of the 2003 account.