30. Arkansas – Poison Ivy (Toxicodendron radicans)
Poison ivy grows abundantly in Arkansas forests, fields, and suburban areas. Its green leaves turn red in fall, and clusters of white berries may attract children. While rarely fatal, the plant’s urushiol oil causes severe skin rashes, blistering, swelling, and, in rare cases, systemic reactions. Direct contact can spread the toxin to others, making it highly contagious. Although not deadly like some other plants, poison ivy’s ability to cause extreme irritation and secondary infections makes it one of the state’s most notorious plants for humans and pets alike.
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