- CalPhotos: California Plants & Habitats
- Color Illustrations from the National Geographic Society
- Flora of Europe
- Hawaiian Native Plants
- Index of plant pictures by genus and species
- Florida Wildflowers Pictures
- Kohler's Medicinal Plants
- Medicinal Plant Photographs by genus
- Plant Images by Common English and North American Spanish Name
- Plants of the Machiguenga
- Plant Images (Rain Tree)
- Southwest School of Botanical Medicine
- Vascular Plants of Madagascar