Felger, R.S., S. Rutman, and J. Malusa. 2014. Ajo Peak to Tinajas Altas: Flora of Southwestern Arizona: Part 8, Eudicots: Acanthaceae–Apocynaceae. Phytoneuron 2014-85: 1–71. Published 28 August 2014. ISSN 2153 733X AJO PEAK TO TINAJAS ALTAS: FLORA OF SOUTHWESTERN ARIZONA PART 8. EUDICOTS: ACANTHACEAE – APOCYNACEAE RICHARD STEPHEN FELGER Herbarium, University of Arizona Tucson, Arizona 85721 & Sky Island Alliance P.O. Box 41165, Tucson, Arizona 85717 *Author for correspondence:
[email protected] SUSAN RUTMAN Organ Pipe Cactus National Monument 10 Organ Pipe Drive Ajo, Arizona 85321 JIM MALUSA School of Natural Resources and the Environment University of Arizona Tucson, Arizona 85721
[email protected] ABSTRACT A floristic account is provided for seven eudicot families as part of the 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: Acanthaceae (5 genera, 7 species), Adoxaceae (1 genus, 1 species), Aizoaceae (2 genera, 3 species), Amaranthaceae (12 genera, 22 species), Anacardiaceae (1 genus, 2 species), Apiaceae (6 genera, 6 species), and Apocynaceae (5 genera, 10 species). This is the eighth contribution for this flora published in Phytoneuron and also posted open access on the website of the University of Arizona Herbarium (ARIZ). This contribution to our flora in southwestern Arizona is the eighth published in a series in Phytoneuron and also posted open access on the website of the University of Arizona Herbarium (ARIZ; Figure 1). Seven eudicot families are included in this contribution: Acanthaceae (5 genera, 7 species), Adoxaceae (1 genus, 1 species), Aizoaceae (2 genera, 3 species), Amaranthaceae (12 genera, 22 species), Anacardiaceae (1 genus, 2 species), Apiaceae (6 genera, 6 species), and Apocynaceae (5 genera, 10 species).