Also known as deadly nightshade, its berries contain tropane alkaloids that can be highly toxic and even lethal if consumed in significant quantities.
The seeds of this plant contain ricin, a potent toxin that can be fatal if ingested, even in small amounts.
All parts of the oleander plant are highly toxic, containing cardiac glycosides that can affect the heart and lead to death if ingested.
The seeds of this plant contain the toxin abrin, which is similar to ricin and can be deadly if ingested or even handled improperly.
Also known as monkshood or wolfsbane, this plant contains alkaloids that can be fatal if ingested or even absorbed through the skin.
Foxglove contains cardiac glycosides that can cause heart arrhythmias and be lethal if ingested.
The roots of water hemlock contain highly toxic compounds, including cicutoxin, which can cause seizures and death if ingested.
All parts of this plant contain tropane alkaloids that can lead to hallucinations, paralysis, and death if ingested.
Also known as devil's trumpet, this plant contains toxic alkaloids that can cause hallucinations and serious health issues, including death.
Found in tropical regions, the seeds of this tree contain cardiac glycosides that can lead to heart failure and death if ingested.