A plant species believed to harbor chiggers or used traditionally to treat chigger bites.
Compound of 'chigger' (West African origin) and 'weed' (from Old English 'weod'), combining the parasite name with a plant term, likely folk-etymologized from observations of chiggers in grassy areas.
Folk medicine traditions across the American South developed elaborate treatments using plants people found near chigger-infested areas, creating plant names like chiggerweed even if the actual connection between the plant and the parasite was more accidental than scientific.
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