Is parthenium weed allergy problem worse than that of annual ragweed?

The CABI Blog

A small clump of field-growing parthenium weed plants approximately 80 days old Photo Credit: S. Adkins

By Asad Shabbir

Parthenium weed and annual ragweed are closely related members of the Asteraceae, known for their high allergenicity. The detrimental effects on human health of the more temperate annual ragweed are very well known. However, those of the more tropical parthenium weed are less well known and in fact much more severe, affecting many tens of millions of people each year.

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