Cylindropuntia wolfii (L.D. Benson) J. Rebman
Opuntia echinocarpa Engelm. & Bigelow var. wolfii L.D. Benson
Opuntia wolfii (L.D. Benson) M.A. Baker
Wolf’s Cholla, Wolf’s Opuntia
Wolf’s cholla (“cholla” means a cylindrical stem) is native to extreme southern California and part of the Baja peninsula.
Identification: These heavily branched, shrublike plants reach 20-59" (50-150 cm) in height. Stems are segmented, yellowish green, with segments 2-16" (6-40 cm) long and ⅞-1½" (2.5-4 cm) around. Spines are yellowish to brown, darkening with age, in groups of 12-30, up to 1" (3 cm) long. Flowers are yellowish green with tinges of bronze, to purplish brown. (Thanks to Joanne Schwartz for correcting an error in my reporting of flower color.) Grayish fruits are densely covered with spines, about 1" (3 cm) long and 1" (3 cm) in diameter.
Cylindropuntia wolfii at the Anza-Borrego Desert Natural History Association (great photos)
Cylindropuntia wolfii on Calflora
Cylindropuntia wolfii on CalPhotos
Cylindropuntia wolfii at the San Diego Natural History Museum
Cylindropuntia wolfii on SEINet—the Southwest Environmental Information Network
Cylindropuntia wolfii description by Thomas H. Kent, last updated 12 Oct 2018.