common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron 同义词：horseweed, Canadian fleabane, Conyza canadensis, Erigeron canadensis,
any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas
hairy perennial Eurasian herb with yellow daisylike flowers reputed to destroy or drive away fleas 同义词：feabane mullet, Pulicaria dysenterica,
Fleabane is a common name for some flowering plants in the family Asteraceae.
例句与用法
1.
Clinical effective observation on cor pulmonale blood stasis treated by fleabane injection 灯盏细辛注射液治疗肺心病血瘀型临床疗效观察
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