耳草属

例句：

1. 1.The plant belongs to the family of orchids.
   这种植物属于兰花家族。
2. 2.This species is a member of the ear grass genus.
   这种物种是耳草属的成员。
3. 3.The ear grasses are commonly found in tropical regions.
   耳草通常在热带地区发现。