Small tree of echinacea, 8- 12m tall. The leaves are triangular-ovate or ovoid, 8 cm wide, tapering at the top, truncated at the base, broadly wedge-shaped or heart-shaped, with dark green leaves and hairless back; The petiole is 2-8 cm long. The terminal corymbose raceme has 2- 12 flowers. Calyx buds are spherical with sharp teeth at the top. The corolla is reddish with two yellow stripes and deep purple spots inside. Capsule linear. The seeds are oblong, about 1 cm long, 2 cm wide and hairy at both ends. The flowering period is May-June, and the fruiting period is 6-65438+1October.

China, Hebei, Henan, Shandong, Shanxi, Shaanxi, Gansu, Jiangsu, Zhejiang and Hunan. Cultivated in Guangxi, Guizhou and Yunnan. This species likes fertile soil, grows rapidly, has straight trunk and hard wood, and is a good building material. It can be cultivated as an ornamental tree and a street tree, and propagated by roots. Flowers can be fried and leaves can be fed to pigs. Stem bark, leaves and seeds are used as medicine, and the fruit tastes bitter and cool, clearing away heat and diuresis. They are mainly used to treat urinary calculi, urinary tract infections and hot sores, and are not suitable for pregnant women.