Tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings,an important honey plant.

 
  • 北美多年生高草,匍匐根状茎,叶窄,粉紫色花穗,燃烧过的地区或空地大量出现,一种重要的蜜源植物。
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