Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

Cupressaceae, Cypress Family

The Cupressaceae or cypress family is in the major group of Gymnosperms (Conifers, cycads and allies) with world-wide representatives. Important members of this family in the Southwest include the pine trees (Pinus), junipers (Juniperus), coast redwoods (Sequoia) and Cypress of the genus Cupressus.

Accoding to the Plant List, Cupressaceae contains 23 plant genera and 148 accepted species names.

References:
The Plant List. A working list of all known plant species.[accessed 06/05/2015]
http://www.theplantlist.org/browse/G/Cupressaceae/
Wikipedia contributors, 'Cupressaceae', Wikipedia, The Free Encyclopedia, 12 March 2015, 19:21 UTC,
[accessed 5 June 2015]
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database – ITIS search