Taishun potherb Jingangsu is a bitter vegetable, which is called Patrinia in materia medica. Mountain areas in southern Zhejiang often eat farmhouse dishes. Sonchus oleraceus is a non-toxic wild plant for both medicine and food. It is a kind of panicum miliaceum, named "Patrinia". It is also called "Patrinia" because it has branches and leaves in spring and summer, yellow flowers in autumn and strong rancid bean paste flavor. There is also a bitter vegetable growing on rocks, with slightly yellow leaves and obvious teeth at the top, which tastes bitter and smells stronger.