Frostweed

[f'rɒstwi:d]

解释:

(noun.) perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts.

黛拉校对--From WordNet

解释:

(n.) An American species of rockrose (Helianthemum Canadense), sometimes used in medicine as an astringent or aromatic tonic.

录入:威廉敏娜