Prenanthes alba

Từ điển WordNet v3.1 - WordNet Dictionary

noun

herb of northeastern North America having drooping clusters of yellowish-white flowers;
sometimes placed in genus Prenanthes
• Syn:
white lettuce, cankerweed, Nabalus alba
• Hypernyms:
rattlesnake root
• Member Holonyms:
Nabalus, genus Nabalus