Damian Fagan
Canyon Country Wildflowers : A Field Guide to Common Wildflowers, Shrubs, and Trees (A Falcon Guide), Paperback, 1998

Can be found at: Amazon.Com via a search for Damian Fagan.

Another book by Fagan:

A Naturalist's Guide to the White Rim Trail Damian Fagan, B. David Williams / Paperback / Published 1998 Our Price: $7.95 + $1.47 special surcharge (Special Order)