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单词 leafy spurge
释义

leafy spurge

noun
A perennial Eurasian herb that produces a flat-topped cluster of yellow bracts bearing small flowers. It is a noxious weed in prairie and grassland areas of the US, where it aggressively displaces native plants.
  • Euphorbia esula, family Euphorbiaceae.
As agriculture expanded onto the prairies, wild oats and sow thistle, leafy spurge and Canada thistle migrated westward....
  • Canada thistle and leafy spurge are two noxious weed species that are increasing in Nebraska.
  • Currently there are six noxious weeds in Nebraska, including Canada thistle, plumeless thistle, musk thistle, leafy spurge, spotted knapweed, and diffuse knapweed.
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更新时间:2024/12/23 16:19:21