Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument

Text and Color Photographs by CARL E. JEPSON Chief Park Naturalist and LELAND F. ALLEN Park Naturalist
Published and Copyright 1958 by ZION-BRYCE NATURAL HISTORY ASSOCIATION in cooperation with the NATIONAL PARK SERVICE UTAH
In these areas of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument, four life zones are found extending from low elevations of near 3,600 feet to extremes of over 11,300 feet. The area within elevations from the lowest point to 4,000 feet is the Lower Sonoran Zone; above that to 7,000 feet is the Upper Sonoran Zone; from 7,000 to 8,500 feet is the Transition Zone; above that to 10,000 feet is the Canadian Zone; and from 10,000 feet to the highest point on Brian Head Peak is the Hudsonian Zone.
Native plants typical of desert, mesa and mountain grow within these extremes of elevation and include a wide variety of species. Of the three areas featured, Cedar Breaks National Monument contains the greatest variety, and frequently exhibits marvelous displays, depending on the amount of rainfall from year to year.
The purpose of this booklet is to help visitors in their enjoyment of the flowers they find along the roadways and trails—flowers they observe, appreciate and probably photograph but leave UNPICKED for the pleasure of others.
Through the mediums of color photography and color lithography one hundred and six species of wild flowers and plants most commonly seen are presented in closeup detail as an aid to identification. Brief descriptions of size, habitat, blooming period, use, economic value and other details are given.
The flowers have been arranged in a general order of families, except that occasionally, for the convenience of preparing the color plates, flowers of similar color or density have been grouped on a page although they are not in the same family nor closely related.
The Standardized Plant Names of the American Joint Committee on Horticultural Nomenclature has been followed as the guide. In case of locally used common names, such has been indicated in the text.