- any plant belonging to the genus Spiraea, of the rose family, especially S. latifolia, having white or pink flowers.
- any plant of the closely related genus Filipendula (or Ulmaria).
- a Eurasian rosaceous plant, Filipendula ulmaria, with dense heads of small fragrant cream-coloured flowers
- any of several North American rosaceous plants of the genus Spiraea, having pyramid-shaped sprays of small flowers
