The small greenish flowers are borne on branched panicles; and the male ones are characterized by having a disgusting odour.
In length; the panicles are contracted and dense, and the grains, which are enclosed in husks and.
In Europe it is raised less for bread than for mechanical purposes; the panicles are made into the so-called rice-brooms and into brushes.
Japonica, I to 12 ft., better known as Hoteia japonica or Spiraea japonica, thrives in peaty or sandy soil; its glossy tripinnate leaves, and feathery panicles of white flowers early in summer, are very attractive.
Cordata has heartshaped lobed leaves, and large panicles of small flesh-coloured flowers.