Plants
25 Poisonous Plants in Pennsylvania (and What to Do After Contact)
The poisonous plants you are most likely to meet in Pennsylvania are poison ivy, which grows in every county, and wild parsnip and giant hogweed, whose
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Trees
Trees of Pennsylvania: Common Trees & Native Pines
Pennsylvania means “Penn’s Woods”, and the name still fits: close to 60% of the state, about 17 million acres, is forested. Most of it is northern