Seen from a distance, a large area in the field is red. What grass is it?

No pictures-I guess it's red grass or blood grass

Rhynchelytrum repens (wild. )C.E. Hubb。 Also known as Dilik, Tenebrio molitor, Landihua, Duck Tongue, Ditan Flower, Shanhai Belt and Red Grass, it belongs to Gramineae and originated in South Africa. China is now distributed in Taiwan Province Province, Fujian, Hong Kong, Guangdong and Hainan.

Hematopodium is a perennial herb. Flowering in late summer. Like light or places with mottled light. Heat-resistant, moist and well-drained soil. Excellent ornamental grass with colorful leaves. Introduced from Japan, also known as "Japanese blood grass".