The Society publishes Madroño, a quarterly scientific journal of peer-reviewed research articles on the natural history of Western American botanical organisms and vegetation, including those of Mexico, Central America, and South America. Original research papers and notes (in English or Spanish) on ecology, systematics, floristics, restoration, conservation biology, and other areas of organismal botany are routinely found in Madroño. We also publish noteworthy collections: a tabulation of range extensions and new species, and new book reviews. Special issues of Madroño comprise important contributions to our flora.