Additionally, the microstructure of "Digitaria exilis" was studied, and it was discovered that it is very similar to the grain millets. Researchers found that "Digitaria exilis" is most abundant in protein bodies and that most of the protein is located towards the center of the cell. The specific structure of "Digitaria exilis" was analyzed and it was found that it is surrounded by thin bracts and two glumes. The caryopsis, a type of fruit that contains a pericarp that is fused with a thin seed coat, of the "Digitaria exilis" contains several layers that serve the purpose of protecting the endosperm and embryonic tissues.