Collection of online floras, including the Flora of China, Flora of North America, Flora of Missouri, Flora of Pakistan, and Trees and Shrubs of the Andes of Ecuador. www.efloras.org
Comprehensive systematic accounts of the plant species of North America north of Mexico. Includes names, relationships, characteristics, and distribution. hua.huh.harvard.edu/FNA
A plant identification resource that covers more than 630 species of trees, grasses, and forbs native to the southern Great Plains. www.noble.org/imagegallery
Comprehensive searchable database compiled by the Institute of Systematic Botany at the University of South Florida with maps, citations, and images and species lists for each county. www.plantatlas.usf.edu
Information about the Australian National Botanic Gardens, Australian plants, access to databases on living plants, herbarium specimens, and photographs. www.anbg.gov.au/cpbr
Database of rare plant information for species in the southeastern United States, including records for North Carolina, South Carolina, Georgia, and north and central Florida. www.serpin.org