Atriplex Linnaeus - Orach, saltbush. Flora of North America. 2004;4: 322-381.

Chenopodiaceae Ventenat - Goosefoot family (introductory pages). Flora of North America. 2004;4: 258-261.

Zuckia Standley -Siltbush. Flora of North America. 2004;4: 303-305.

A new species of Abronia (Nyctaginaceae) from San Juan County, New Mexico, U.S.A. Novon. 2002;12:167-169.

Distribution of locoweed toxin Swainsonine in populations of Oxytropis lambertii. J. Chemical Ecology. 2002;28:701-707.

Overview of Sphaeralcea (Malvaceae) in southern Utah and northern Arizona, U.S.A., and description of a new species. Novon. 2002;12:159-166.

Some tall larkspurs (Delphinium-Ranunculaceae) a taxonomic revision. Biochemical Systematics and Ecology. 2002;30:103-112.

Taxonomic implications of diterpene alkaloids in three toxic tall larkspur species (Delphinium spp.). Biochemical Systematics and Ecology. 2002;30:77-90.

Varieties of Astragalus pulsiferae (Leguminosae). Rhodora. 2002;104:271-279.

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