bitterweed

== English == === Etymology === From bitter +‎ weed. === Noun === bitterweed (plural bitterweeds) Any plant in the genus Ambrosia, especially Ambrosia artemisiifolia (common ragweed). The plant Helenium amarum (yellow sneezeweed). Parthenium hysterophorus (false ragweed) Artemisia tripartita subsp. tripartita (syn. Artemisia trifida; threetip sagebrush) Picris rhagadioloides (syn. Picris sprengeriana; tall oxtongue) Tetraneuris spp. === References === bitterweed on Wikipedia.Wikipedia “bitterweed”, in OneLook Dictionary Search.