What's the name of this little flower?

Alias: Huang Juhua, Five-petal Lotus, Laolaihong, Stinky Chrysanthemum, Peacock Chrysanthemum, Small Golden Flower, Red and Yellow Grass, Satin Flower.

Panicum miliaceum, Compositae, with a plant height of 30 to 100 cm. Pinnate compound leaves, leaflets lanceolate. Pedicels are extracted from leaf axils, and the flower heads are terminal, with one or two heads. The colors are reddish brown, yellowish brown, pale yellow and purplish red spots. The flower shape is similar to that of marigold, but smaller and more numerous. When it blooms, the flowers in Huang Chengcheng are covered with branches on the stump and look gorgeous and lovely. Peacock grass has good ornamental value and is suitable for potted plants, field planting and cut flowers. The leaves are opposite, pinnately divided, the lobes are lanceolate, and there are obvious oil glands at the leaf margin. Flowers are born on the top of the head, with dark red outer ring and yellow inner ring, so they are also called red and yellow grass. Because of repeated interspecific hybridization, in addition to red and yellow, pure yellow, orange and other varieties have been cultivated, as well as single petals and compound petals. The flowering period lasts from May Day to November 1st.