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。