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珙桐(Davidia involucvata)在植物分类学上,属珙桐科的一种落叶乔木,主干通直,高度可达20米左右。由多数雄花和一朵两性花合成球形的头状花序,花序基部有两片乳白色火苞片,犹如双翅,花开时节,整个花序就像一只展翅欲飞的白鸽,受到游人的喜爱。这种树在我国叫“珙桐”,是围家一级保护树种,世界著名的观赏植物,欧洲人则称为“中国鸽子树”。
Davidia involucvata is a kind of deciduous tree in the division of stolonifera in the plant taxonomy. Its main trunk is straight and up to 20 meters in height. From the majority of male flowers and a bisexual flower to a spherical head, the base of the inflorescence has two pieces of milky white fire bracts. It is like a pair of wings. When the flowers bloom, the whole inflorescence is like a dove flying, which is loved by tourists. . This kind of tree is called “Indus” in our country. It is a first-class tree species for conservation and a world-famous ornamental plant. Europeans call it a “Chinese pigeon tree.”