Welcome to eFlora, an interactive, dichotomous key to all species of vascular plants in the Sydney Region. Development of the application and design of the website was generously supported by the NSW Environmental Trust, The University of Wollongong and the University of Sydney. The keys, descriptions and glossary have been adapted from the 5th Edition of the Flora of the Sydney Region (Pellow, Henwood and Carolin; 2009).