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Several of these are available on the internet and are so listed. |
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Benson, Lyman, and Robert A. Darrow, Trees and Shrubs of the Southwestern Deserts, 3d ed. Tucson, Ariz.: University of Arizona Press, 1981. |
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Elias, Thomas S., The Complete Trees of North America. New York: Van Nostrand Rheinhold, 1980. |
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Hickman, James C., Ed., The Jepson Manual: Higher Plants of California. Berkeley, Calif.: University of California Press, 1993. |
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Ivey, Robert DeWitt, Flowering Plants of New Mexico, 2d ed. Albuquerque, N.M.: Robert DeWitt Ivey, 1986. |
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Jepson, Willis Manual of the Flowering Plants of California. Berkeley, Calif.: University of California Press, 1960. |
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Kearney, Thomas, and Robert Peebles, Arizona Flora. Berkeley, Calif.: University of California Press, 1964. |
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Nelson, Ruth Ashton, Revised by Roger L. Williams, Handbook of Rocky Mountain Plants, 4th ed. Niwot, Colo.: Roberts Rinehart Publishers, 1992. |
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Ricket, Harold W., Wild Flowers of the United States. New York: McGraw-Hill Book Company, 1973. |
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Spellenberg, Richard, The Audubon Society Field Guide to North American Wildflowers (Western). New York: Alfred A. Knopf, 1979. |
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