Abstract: This checklist is maintained by the Southern Colorado Plateau Inventory and Monitoring network of the National Park Service. It has been derived from various sources including published and unpublished inventory reports and floras, collection records and park lists. A primary source for this checklist was Rink et al., "A checklist of the vascular flora of El Morro National Monument." Journal of the Torrey Botanical Society 136(3). 2009.