Flowers of the Southwest Mountains. Southwestern Monuments Assoc., Globe, Arizona, 1952.
Armstrong, Margaret
Field Book of Western Wild Flowers. G. P. Putnam’s Sons, 1915.
Bailey, H. E. and Bailey, V. L.
Woody Plants of the Western National Parks. The University Press, Notre Dame, Indiana, 1949.
Benson, Lyman
The Cacti of Arizona. University of New Mexico Press, 1950.
Clements, Frederic E. and Clements, Edith S.
Rocky Mountain Flowers. The H. W. Wilson Co., New York, 1928.
Coulter, John M. and Nelson, Aven
New Manual of Botany of the Central Rocky Mountains. American Book Company, New York, 1919.
Dodge, Natt N. (Drawings by Jeanne R. Janish)
Flowers of the Southwest Deserts. Southwestern Monuments Association, Globe, Arizona, 1954.
Jaeger, Edmund C.
Desert Wild Flowers. Stanford University Press, Revised Edition, 1944.
Joint Committee on Horticultural Nomenclature
Standardized Plant Names. Second Edition 1942. J. Horace McFarland Co.
Kearney, Thomas H. and Pebble, Robert H.
Arizona Flora. University of California Press, 1951.
McDougal, W. B. and Baggley, Herma A.
Plants of Yellowstone National Park. Revised Edition, Yellowstone Library and Museum Association, 1956.
McDougal, W. B. and Sperry, Omar E.
Plants of Big Bend National Park. Government Printing Office, 1951.
McDougal, W. B.
Checklist of Plants of Grand Canyon National Park. Bulletin No. 10. Grand Canyon Natural History Association, 1947.
Patraw, Pauline M. (Drawings by Jeanne R. Janish)
Flowers of the Southwest Mesas. Southwestern Monuments Association, Globe, Arizona, 1954.
Presnall, C. C. and Patraw, Pauline M.
Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument · The Wunder Library — complete classics, free to read, with narration.