butterweed [
'bʌtɚ`wid]
[医] 飞蓬[属植物]
butterweed[ noun ]- American ragwort with yellow flowers
<noun.plant>
- any of several yellow-flowered plants of the genus Packera; often placed in genus Senecio
<noun.plant>
Butterweed \But"ter*weed`\, n. (Bot.)
An annual composite plant of the Mississippi valley ({Senecio
lobatus}).