Either of two North American shrubs(Spiraea alba or S.latifolia)having umbel - shaped clusters of white flowers.

• 绣线菊属植物两种产于北美洲的灌木(绣叶菊属白花柳叶绣线菊或绣叶菊属宽叶绣线菊)，具有白色花朵的伞状花束