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Navajo pincushion cactus (Pediocactus peeblesianus)

Description

Pediocactus peeblesianus is a rare species of cactus known by the common names Navajo pincushion cactus. It is endemic to the state of Arizona in the United States. One subspecies of the plant is federally listed as an endangered species of the U.S. This petite cactus grows up to 6.5 centimeters tall by about 5.5 wide. It is grayish green in color and generally spherical or egg-shaped. Sometimes only the top is visible above the soil and the whole cactus body may shrink and disappear under the soil in dry times. Each circular, hairy areole on the surface of the cactus has a few spines, the longest of which may exceed 2 centimeters in length. The spines are mosty corky and flexible but have hard tips and are white or dull in color. The yellowish flowers are up to 2.5 centimeters wide. The fruit is green, ripening reddish, and reaches about a centimeter long.

Taxonomic tree

  • Domain: Eukarya

    • Kingdom: Plantae

      • Phylum: Magnoliophyta

        • Class: Magnoliopsida

          • Order: Caryophyllales

            • Family: Cactaceae

              • Genus: Pediocactus