IWAKI, Fukushima Prefecture—A weed described as “the worst alien species on the planet” has been discovered for the first time in the northeastern Tohoku region, alarming local farmers and ...
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How USAID's assistance brought a poisonous 'alien' plant to India on request of Jawaharlal Nehru, and its still troubling usParthenium hysterophorus (Family: Asteraceae), locally called gajar ghas or Congress grass, is an alien weed which entered into India along with wheat imported from USA in the early 1950s.
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