有200种,广布于全球各地,我国有15种,产西南、西北至东北。本属植物常寄生于禾本科植物的根上。叶通常在茎下部的较小,向上逐渐增大,过渡为苞叶,苞叶比营养叶大而宽,叶和苞叶均对生,掌状叶脉,边缘为胼胝质增厚,具齿。该属物种为一年生或多年生草本植物。
婆婆纳属的植物在他们的眼里也是花,那蓝色就像是一首欢乐的歌谣,小米草也是一样,清除了旅途带来的灰尘。
Speedwell is their flower too, with its blue like a song of cheer, and so is eyebright, which clears away the dust of travel.
小米草:一种小米属植物,带小的对生的,齿状叶子和白色并且略显紫色的穗状花序。
Eyebright: any of several plants of the genus euphrasia having small opposite toothed leaves and white and purplish flowers grouped in spikes.
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