https://www.springcreekhorserescue.org/toxic-plant-guide.html
Poisonous plants can be found everywhere. Horses will not usually choose to eat them when quality forage is available but, when deprived of green vegetation...
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https://www.foxla.com/news/wild-plant-with-toxic-sap-that-eats-away-at-your-skin-is-spreading
When you go outside this summer, beware of the poisonous weed Wild Parsnip, which grows in nearly all 50 U.S. states, including Illinois.
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https://www.aeaweb.org/articles?id=10.1257/aer.20121656
Environmental Health Risks and Housing Values: Evidence from 1,600 Toxic Plant Openings and Closings by Janet Currie, Lucas Davis, Michael Greenstone and Reed...
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