Abstract: This checklist was derived from the Metro Phoenix EcoFlora Checklist. This list is comprised of species that have been recorded in SEINet, but have not been observed in the metro Phoenix area on iNaturalist. Please send updates/corrections to firstname.lastname@example.org. The EcoFlora project was developed by the New York Botanical Garden and is in collaboration with four gardens across the country, including Desert Botanical Garden, Denver Botanic Gardens, Chicago Botanic Garden and Marie Selby Botanical Gardens. The project is made possible in part by a National Leadership Grant from the Institute of Museum and Library Services (IMLS). The Metro Phoenix EcoFlora is also in collaboration with the Central Arizona Conservation Alliance (CAZCA), which supports residents and organizations in protecting and caring for open space and habitat in Central Arizona.