Characteristics: Evergreen shrub, bisexual, to 4 m tall, plants with dense and short hairs; leaves simple, opposite, lanceolate, margin serrulate; spikes axially, flowers monoecious; fruit an achene.

• 形态：常绿灌木，可达4公尺高，全株披短毛；单叶对生，披针形，细锯齿缘；穗状花序，雌雄同株但异花序，小花密生；瘦果。