CalPhotos (University of California, Berkeley)
Botanical Image Database (University of Basel)
Plant Image Gallery (cca 5000 pictures )
Flora of Europe (photografic herbarium)
PLANTS - Image Gallery (USDA)
Noble Foundation Plant Image Gallery
Flora von Deutschland, Österreich und der Schweiz (Thomé)
Hort.net Plant Gallery Listing (over 4161 images of all types of plants)
Fa. C. Esveld (Plant Catalogue)
Digital flovers database (University of Illinois)
581 images from C.A.M. Lindman’s Flora
Bilder ur Nordens Flora (C.A.M. Lindman, runeberg.org)
Einheimische Wildpflanzen rund um Freiburg
Biolib.de - Pflanzen : Botanical images (2004) (taken by Kurt Stüber)
Vascular Plant Image Library (Digital Flora of Texas)
Photo Gallery (California Native Plant Society)
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