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Definition of Marsh milkweed
1. Noun. North American herb having whorled leaves and terminal clusters of flowers spotted with purple.
Exact synonyms: Eupatorium Purpureum, Joe-pye Weed, Purple Boneset, Trumpet Weed
Group relationships: Eupatorium, Genus Eupatorium
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Eupatorium, Genus Eupatorium
Generic synonyms: Herb, Herbaceous Plant