⚠️ 12 Toxic Plants You Should Never Ignore 1. Oleander (Nerium oleander) – Adodó All parts of this popular ornamental plant are poisonous. Ingestion or even skin contact can cause irritation and severe health issues. Keep out of reach of children and pets. 2. Angel’s Trumpets (Brugmansia spp.) – Gegemu Beautiful but deadly. The flowers, nectar, and seeds are highly toxic. Ingestion may lead to hallucinations, rapid heartbeat, and even coma. 3. Castor Bean Plant (Ricinus communis) – ÃŒlà rà This plant contains ricin, one of the most poisonous naturally occurring substances. Just a few chewed seeds can be fatal. 4. Hemlock (Conium maculatum) – Èwé ÃŒgún Historically used as poison in ancient executions, Hemlock can cause paralysis and death. Avoid touching or inhaling it. 5. Deadly Nightshade (Atropa belladonna) – Ã’gìdán Pretty but perilous. Even a small amount of this plant can cause hallucinations, seizures, and death if ingested. 6. Lily of the V...