Plant names, genus’ and species lists
https://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
http://www.cactusinhabitat.org
https://cactiguide.com
Orchids
