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Click for second page of Cylindropuntia imbricata photographs.

 

Cylindropuntia imbricataSynonym: Opuntia imbricata (Cholla)
Cactaceae (Cactus Family)

Semi-deserts. Sandy, rocky openings and grasslands. Summer.
BLM lands near Hovenweep National Monument, Utah, May 17, 2007.

In the Four Corners area these tall and spreading Cacti are found in just a few locations in Colorado, one in Utah, none in Arizona, and many in New Mexico.  Main branches are stout and thick, spines are numerous but do not obscure the main branch, and flowers are large, numerous, and attractive.  The plants thrive on hot areas of sand and rock and grasslands where they commonly grow to four feet tall and wide.

The genus and species was named by F. M. Knuth in 1935.  The genus name is for the cylindrical stem shape of this Cactus, formerly in the Opuntia genus (which has flattened stems).  "Imbricata" means shingled and most probably refers to the shingle-like arrangements of the tubercles  --  the long very narrow bumps along the stem.  (Click to see the imbricate tubercles.)  

Cylindropuntia imbricataSynonym: Opuntia imbricata (Cholla)
Cactaceae (Cactus Family)

Semi-deserts. Sandy, rocky openings and grasslands. Summer.
BLM lands near Hovenweep National Monument, Utah, May 17, 2007.

The evenly spaced snows and rains of the winter and spring of 2006-2007 promoted good new stem growth and the maroon buds in the middle promise many flowers.  As the photos of the flowers on this page indicate, the promise was fulfilled.

Cylindropuntia imbricataSynonym: Opuntia imbricata (Cholla)
Cactaceae (Cactus Family)

Semi-deserts. Sandy, rocky openings and grasslands. Summer.
BLM lands near Hovenweep National Monument, Utah, June 11, 2007.

Cylindropuntia imbricataSynonym: Opuntia imbricata (Cholla)
Cactaceae (Cactus Family)

Semi-deserts. Sandy, rocky openings and grasslands. Summer.
BLM lands near Hovenweep National Monument, Utah, June 11, 2007.

Click for second page of Cylindropuntia imbricata photographs.