That hull is made from glumes -- tough chaff that protects the grains.

那层壳是由颖片组成——这是一种坚韧壳，用来粒。

Parting the grasses and looking more closely you may trace the branching of their shining stems, and note the marvelous beauty of their mist of flowers, the glumes and pales exquisitely penciled, the yellow dangling stamens, and feathery pistils.

开草，仔细观，您可能会追踪到它们闪亮茎，并注意到它们花雾奇妙美丽，用铅笔精心绘制颖片和苍白，黄色悬垂雄蕊和羽毛状雌蕊。