Cylindropuntia tesajo var. cineracea (Wiggins) Backeb.
Grusonia tesajo (Engelm.) G.D.Rowley
Opuntia cineracea Wiggins
Opuntia tesajo Engelm.
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Cylindropuntia tesajo (Engelm.) F.M.Knuth 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. References:
Anderson, Edward F., The Cactus Family, Timber Press, 2001, p. 213 Online References:
The Arizona Sonora Desert Museum Sonoran Desert Digital Library The Madrean Archipelago Biodiversity Assessment Cylindropuntia tesajo description by Thomas H. Kent, last updated 25 May 2020.
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5/24/2009 · Arizona Sonora Desert Museum, Tucson, Arizona Range:
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