The following is from Baidu:

Small acacia (scientific name: Desmodium caudatum, alias: sharp-leafed small acacia, jasmine grass, wiping grass, milling grass, charm grass, fairy grass (Chaoshan), Ba Ren Grass, Bian Cao Zi, grass shoe board, bean grass, Feng Ren Beat, dry locusts, ant locust grass, take the body of the grass, traditional Chinese medicine name: clear wine jar, Min language: bbua caur), is a member of the family of legumes Deciduous nitrogen-fixing plants.