Botanical Dermatology
Feverfew and carrot weed (Parthenium hysterophores)

Feverfew, or carrot weed, is an unwelcome plant, which is also known
as the scourge of India. This species has developed a wide ecologic
niche in India after it was accidentally imported with a consignment
of wheat from the United States.

The Indian plant contains large amounts of sesquiterpene lactones
(SQLs) and produces a severe widespread dermatitis, which occurs
predominantly in men. The dermatitis resembles ragweed dermatitis.

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regards
Pankaj Oudhia