marsh milkweed

1 definition found

marsh milkweed - WordNet (r) 2.1 (2005) :

  marsh milkweed
      n 1: North American herb having whorled leaves and terminal
           clusters of flowers spotted with purple [syn: Joe-Pye weed
           , purple boneset, trumpet weed, marsh milkweed,
           Eupatorium purpureum]