Botanical name
Philodendron sp.

Poisonous parts
Leaves, juices

Poisonous component
Calcium oxalate

Notes
Philodendrons are an popular container plant that can cause poisoning in humans and pets because of the oxalates they contain. General symptoms of contact dermatitis with the plant juices are erythema (reddening and inflammation of the skin), itchiness. Ingestion will quickly cause painful burning and swelling of lips, mouth, tongue, and throat.

Philodendrons were among the best house plants in N.A.S.A.'s tests for removing toxins. See house plants for air purification for more info.