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单词 frostweed
释义

frostweed

noun
Either of two perennials of the eastern United States on which ice crystals tend to form from exuded sap under freezing conditions: Crocanthemum canadense (family Cistaceae), which has yellow flowers and is used medicinally as a tonic and an astringent, and a crown beard, Verbesina virginica, which has small white flowers.

Origin

Early 19th century; earliest use found in American Monthly Magazine.

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更新时间:2025/1/11 4:42:14