butterweed

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. American ragwort with yellow flowers
• Syn:
ragwort, Senecio glabellus
• Hypernyms:
wildflower, wild flower
• Member Holonyms:
Senecio, genus Senecio
2. any of several yellow-flowered plants of the genus Packera;
often placed in genus Senecio
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
Packera, genus Packera