珙(王同)科珙(王同)(Davidia involucrataBaill.),又名鸽子树,自然分布于我国湖北西部、四川西部和南部、贵州东北部、湖南西部及云南中部等中亚热带山地海拔1200—2500米的常绿、落叶、阔叶混交林中,是距今约6千万年前起源于新生代初期第三纪古热带植物区系的孑遗种,为我国特有的珍贵树种,已被国家列为一级重点保护植物。每年4—5月珙(王同)开花期间,在紫红色的顶生头状花序下部,着生有两片巨大的白色苞片,形似展翅高飞的白鸽,一树 (Wang Tong) (Davidia involucrataBaill.), Also known as pigeon tree, naturally distributed in China’s western Hubei Province, western and southern Sichuan, northeastern Guizhou, western Hunan and central Yunnan and other subtropical mountains at an altitude of 1200 - 2500 meters of evergreen, deciduous, broad-leaved mixed forest, is about 60 million years ago, originated in the early Cenozoic Tertiary Paleoecology flora species, as China’s unique precious species, has been the country As a priority protected plants. From April to May every year, flowers (Wang Tong) bloom in the lower part of the fuchsine top head, with two huge white bracts, like the wings of the flying white dove, a tree