Weed of the Month: Parthenium Ragweed (Parthenium hysterophorous)This long-lived annual weed is a member of the aster family, going by many names, including false ragweed, carrot weed, parthenium ragweed, Santa Maria feverfew, whitetop weed, famine weed, and congress weed. It’s believed to have originated from Central and South America but has since ...
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