Plant names, genus’ and species lists
- http://www.worldfloraonline.org
- http://www.ars-grin.gov
- KEW checklist of selected plant names
- USDA plant database

Regional
- https://www.ispotnature.org (South Africa) shows plants in their natural habitat
- https://pflanzenstimmung.de (Germany) with german and european wildflowers

Cacti and other succulents
Orchids
