Below is a list of websites and tools from around the web which can help aid in identifying plant species, and determining their safety around rabbits and other companion animals.
User caution should be practiced when visiting these unassociated external links, as we cannot verify information is maintained, up-to-date, and remains accurate.
KEY:
⚉ — direct link to this section
Phone Application Identification: ⚉
Google Lens
https://lens.google/
PlantIn
https://myplantin.com/plant-identifier
Plant Snap
https://www.plantsnap.com/

Identify if a plant is edible or has medicinal uses: ⚉
Note that edibility and medicinal practices do not always translate across species, please confirm through other means whether a plant can be given to non-humans safely.
Plants For A Future
http://pfaf.org
USDA – Dr. Duke’s Phytochemical and Ethnobotanical Databases
https://phytochem.nal.usda.gov/phytochem/search
To learn more about what might make a plant toxic, please see this article in the American Journal of Biomedical Science & Research
https://biomedgrid.com/fulltext/volume4/plant-toxins.000793.php
Archive: https://archive.ph/Jp7C3
DOI: 10.34297/AJBSR.2019.04.000793

Other sources: ⚉
A Guide to Plant Poisoning of Animals in North America
https://books.google.com/books/about/A_Guide_to_Plant_Poisoning_of_Animals_in.html
Toxic Plants of North America, Second Edition
George E. Burrows, Ronald J. Tyrl
https://books.google.com/books/about/Toxic_Plants_of_North_America.html
EPA ToxCast Data
https://www.epa.gov/chemical-research/exploring-toxcast-data-downloadable-data
Cornell Department of Animal Science – Plants Poisonous to Livestock
http://poisonousplants.ansci.cornell.edu/
University of Illinois at Urbana-Champaign – Plants Toxic to Animals
https://guides.library.illinois.edu/c.php?g=745575&p=5339398
Indoor Companion Animal Poisoning by Plants in Europe – PMC
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7427442
The Open Sanctuary Project’s Global Toxic Plant Database
https://airtable.com/shr3CVNlpVzVn5ioI/tblRjCd3kH3UMWGuP
World Agroforestry Centre – Agroforestree Database
https://apps.worldagroforestry.org/treedb/index.php?keyword=Fodder
USDA ARS – Poisonous Plants By Toxic Syndrome
https://www.ars.usda.gov/pacific-west-area/logan-ut/poisonous-plant-research/docs/poisonous-plants-by-toxic-syndrome
University of Idaho – Toxic Plant Database
https://www.webpages.uidaho.edu/range/toxicplants_horses/Toxic%20Plant%20Database.html
Swiss Agroscope – Toxic Plants – Phytotoxin (TPPT) Database
https://www.agroscope.admin.ch/agroscope/en/home/publications/apps/tppt.html
Encyclopedia of Life
https://eol.org
Search through journals and publications: ⚉
Global Biodiversity Information Facility – GBIF
https://www.gbif.org
Science.gov
https://www.science.gov
Wiley Online Library
https://onlinelibrary.wiley.com
Google Scholar
https://scholar.google.com/
