1. Poison Sumac
Poison Sumac (Toxicodendron vernix) is a highly poisonous and dangerous plant found in wetlands and swamps. The plant's leaves stems, and berries contain a toxic resin called urushiol, which causes a severe allergic reaction upon contact.
If exposed, it is crucial to immediately wash the affected area with soap and water to remove the resin. Calamine lotion, hydrocortisone creams, or antihistamines can help alleviate symptoms. Identifying Poison Sumac is important as it has smooth, oval-shaped leaves arranged in pairs, typically with 7-13 leaflets per stem, and clusters of greenish-white berries.