Pelecyphora chlorantha is a species of Pelecyphora found in the United States.
Description Pelecyphora chlorantha usually grows solitary or in small groups with a diameter of . The cylindrical shoots reach heights of up to . The plants have 12–33 radial spines per areoles. The four to eleven central spines have a white to dark red or black tip and are 12 to 20 millimeters long. The flowers are yellow green to dull brown and reach a diameter of around 2-3 centimeters and up to 3 cm long, blooming from April to may. The ellipsoid fruits are green and 2.5 cm long with brown seeds. Chromosome count is 2n=22.
Distribution Plants are found growing in limestone ridges and Pinyon–juniper woodland in northwest Arizona, in San Bernardino County California, Nevada, and southwestern Utah at elevations between . The plant is found growing along with Yucca brevifolia.
Taxonomy This plant was originally described as Mammillaria chlorantha by Engelmann in 1878. The plant was moved to Pelecyphora based on DNA sequence and morphological data in 2022.
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