Cholla, Pencil Cholla
Pencil cholla, named for its round, narrow stem segments, is native to the Baja California peninsula in Mexico.
Identification: Forming low shrubs that may be upright or semi-prostrate, plants are less than 31" (80 cm) high. Stem segments are round, 1-4½" (3-12 cm) long × ⅛-⅜" (5-12 mm) in diameter, pale green or brownish green. The tubercules—raised bumps on the stem segments—are small and inconspicuous. The glochids, or groups of small, easily detached spines, are yellow to reddish brown, and ¹/₁₆-⅛" (2-4 mm) long. Spines are sometimes present. Fruits are cylindrical, ½-⅞" (1.5-2.5 cm) long and ¼-½" (8-15 mm) around, tan, and dry. They do not have spines.
Cylindropuntia tesajo on Desert-tropicals.com
Cylindropuntia tesajo on CactiGuide.com
Cylindropuntia tesajo at the Arizona Sonora Desert Museum Sonoran Desert Digital Library
Cylindropuntia tesajo on the Madrean Archipelago Biodiversity Assessment
Cylindropuntia tesajo on ZipcodeZoo.com
Cylindropuntia tesajo description by Thomas H. Kent, last updated 16 Aug 2013.