Also known as rescue grain, life-saving grain, torch fruit and red Yoko, it is an evergreen shrub or small tree of Pyracantha in Rosaceae, and its height can reach 4 m. It is usually propagated by sowing, cutting and layering. Pyracantha has a beautiful tree shape, flowers in summer and red fruits in autumn. The fruit keeps its branches for a long time. It can be used as yard hedges and landscaping materials, and can also be used as roadside hedges to beautify the greening environment. Good dust filtering effect, strong absorption and resistance to sulfur dioxide.