Scientific Name

Cylindropuntia sp.

Family

Cactaceae 

General

     Cholla cactus (genus Cylindropuntia) grow with cylindrical stems, rather than pads (as in a prickly pair).              

CI

     Cylindropuntia has been encountered only at two sites on campus.  A handful (fewer than 10) of smallish plants grow on the crest of the hill directly behind the Arroyo Hall; a smaller clutch of plants was encountered along the crest of the ridge to the south of University Glenn and the town center.  Plants in both patches survived the Springs Fire of 2013.  Flowers and fruit need to be examined to make the species determination, and as of yet, these plants have not been observed in flower.  It is probably either Cylindropuntia prolifera (Englm.) F.M. Knuth, or Cylindropuntia californica  (Torr. & A. Gray) F.M. Knuth.

 

 

References

      The Jepson Manual (2012:  581, Cylindropuntia by Marc Baker, Bruce D. Parfitt and Jon Rebman).

      Dale (2000:  88).

      McAuley (1996:  286).

 cylindropuntia-7mar2013-1

Cylindropuntia sp. at crest of ridge to south of University Glen and Town Center, CI (7 March 2013).

 cylindropuntia-11june2005-1

Cylindropuntia sp. near crest of hill above Arroyo Hall, CI (11 June 2005).

 cylindropuntia-22feb2013-7

Cylindropuntia sp. near crest of hill above Arroyo Hall, CI, Bell Tower West in the background (22 February 2013).

 cylindropuntia-28mar2008-1

Cylindropuntia sp. near crest of hill above Arroyo Hall, CI (28 March 2008).

 cylindropuntia-7mar2013-9

Cylindropuntia sp. at crest of hill to the south of University Glen and the Town Center, CI (7 March 2013).