Water hemlock, also known as cowbane or poison parsnip, is a highly toxic plant that is native to North America, but also found in parts of Europe and Asia. In Nepal, it is not commonly found in the wild, but it may be grown as an ornamental plant in some gardens. The plant contains a toxic chemical called cicutoxin, which is found primarily in the roots but can also be present in the stems and leaves.
The toxin can cause severe neurological symptoms, including seizures, tremors, and convulsions, and can be fatal if ingested in large quantities. Water hemlock can be easily mistaken for edible plants such as wild carrots, parsnips, or celery, and even a small amount of the plant can be deadly. Ingesting any part of the plant can cause symptoms within a few hours, and immediate medical attention is necessary if poisoning is suspected.
Do not induce vomiting or give anything to drink, as this can worsen the poisoning. The severity of symptoms will depend on the amount ingested and the time since ingestion, so it is important to seek medical attention as soon as possible.
If you come into contact with water hemlock, do not touch or ingest any part of the plant, and avoid inhaling the fumes from burning it. Wear gloves and protective clothing if handling the plant, and immediately wash any exposed skin thoroughly with soap and water. If you or someone else has ingested water hemlock, call emergency services immediately and seek medical attention.
