Flickr - João de Deus Medeiros - Drymonia serrulata (1).jpg
Edwards' botanical register, or, Ornamental flower-garden and shrubbery .. (1829-1847) (20987065109).jpg
Flore des serres et des jardins de l'Europe (8588339155).jpg
Taxonomy database of the U.S. National Center for Biotechnology Information
Global Biodiversity Information Facility
Open Tree of Life reference taxonomy version 3.2
Guide de la flore des bords de mer de la Guyane française
Brazilian Flora 2020 project - Projeto Flora do Brasil 2020