According to legend, this flower only blooms in Huangquan. It is generally believed that it is a flower of invitation that only blooms on the banks of the Santu River and the Forgotten River in the underworld. The flowers are as bright and red as blood, paving the road to hell. They have flowers but no leaves. They are the only flowers in the underworld. The fragrance of flowers is said to have magical powers and can evoke memories of the deceased. This flower blooms in large numbers on Huangquan Road. From a distance, it looks like a carpet paved with blood. It is also known as the "Road of Fire" because it is as red as fire. It is also the only scenery and color on this long Huangquan Road. When the soul crosses the River of Forgetfulness, it forgets all that happened in its lifetime. Everything in the past is left on the other side. The deceased leads to the hell of the underworld following the guidance of this flower.