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Old flowers and young fruit.

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Reports, Papers, Journal Articles

A historical account including extensive stay in southern Arizona (Tucson, Tubac, Santa Rita Mountains, Sonoita, and other areas) from the early 1860s. This is one of the most depopulated and dangerous times generally in southern Arizona. Apaches fought back against intruders extensively in this period, to such a point many people of European ancestry left entirely; many settlements were abandoned by Mexicans and Americans both. Even the fort at Tucson was close to abandonment at this time,…

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Reports, Papers, Journal Articles

An introduction is provided for the modern and fossil vascular plant flora of the contiguous protected areas of Organ Pipe Cactus National Monument, Cabeza Prieta National Wildlife Refuge, and the Tinajas Altas Region in southwestern Arizona—the heart of the Sonoran Desert. These three entities encompass 514,242 hectares (1,270,700 acres), approximately 5141 km (1985 mi ). Elevation and ecological diversity generally decreases from east (Organ Pipe) to west (Tinajas Altas) while aridity…