marsh milkweed

Từ điển WordNet v3.1 - WordNet Dictionary

noun

North American herb having whorled leaves and terminal clusters of flowers spotted with purple
• Syn:
Joe-Pye weed, purple boneset, trumpet weed, Eupatorium purpureum
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
Eupatorium, genus Eupatorium