These harmless white flowers can cause serious respiratory illness in just anyone
etimes.in / Apr 17, 2025, 09:00 (IST)
Parthenium hysterophorus, or Congress grass, is a rapidly spreading weed posing significant respiratory health risks. Originating from Central America, it releases a toxic chemical called parthenin, irritating the skin, eyes, and lungs. Exposure can trigger allergic rhinitis, asthma, and even severe lung conditions like hypersensitivity pneumonitis, affecting both outdoor workers and urban residents.