Hog hairy vetch is also known as mountain forked mingke, zapong tree, and sarpong. It is an annual herb of the quinoa family, with a plant height of 30-100 centimeters. Stem erect, basal multi-branched, branch spread light green, striped. Leaves alternate, striped terete, fleshy, hispidulous, apex with a small spiny tip. Inflorescences spikelike, slender, borne on distal part of branches; bracts with stiff needle spines at apex; tepals 5, fruiting with short wings or leathery protuberances dorsally. Utricles obovate, pericarp membranous. Seeds transverse or oblique, embryo curled spirally. Seed reproduction.

Hogweed is born in farmland, roadsides and wasteland; it mainly harms wheat, soybean, cotton and other crops.