burweed marsh elder is a noun meaning "tall annual marsh elder common in moist rich soil in central North America that can cause contact dermatitis; produces much pollen that is a major cause of hay fever". It carries one recorded sense.
tall annual marsh elder common in moist rich soil in central North America that can cause contact dermatitis; produces much pollen that is a major cause of hay fever
Definitions, synonyms and semantic relations for burweed marsh elder come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.