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The book presents data on all the plants in natural and naturalized areas within the City and County of San Francisco, past and present. The Checklist includes the historical and extant occurrences of over 1,600 plant taxa. This includes 766 taxa indigenous to the region, 257 of which are extirpated, and 820 introduced taxa.
The genus Malacothamnus (subfamily Malvoideae, Malvaceae) is composed of fire-following shrubs primarily found in the California Floristic Province and includes many taxa of conservation concern. The genus includes 21 species and 29 minimum-ranked taxa. Here I present a revised treatment of the genus incorporating data from recent morphological and phylogenetic studies (Volumes 1 and 2). This treatment includes information on life history, a discussion and illustrations of morphological characters useful for identification, and relevant conservation information. A key to all taxa recognized in this revision is presented and followed by morphological descriptions, synonymy, common names, distribution maps, blooming period, conservation status, additional notes, and photographs.
Ten authors present an overview of the diverse natural environments in Arizona, including information on the state's climate, geology, soil and water resources, flora and fauna, and human impacts on the fragile ecosystems.
"Describes and illustrates with color photos 520 species of wildflowers found in Nevada and Placer Counties, California. Also provides a physical description of the area, places to see wildflowers, Native American uses, and a complete plant checklist, which includes thirty-eight percent of the plants known to grow wild in California"--Provided by publisher.