A cone-bearing Chinese tree(Metasequoia glyptostroboides) related to the redwood, having deciduous, flat, opposite leaves and small, globular cones. It is now commonly cultivated in the United States. 水杉:一种结有松球的中国树(水杉属水杉) ,和红杉有关,长有落叶性的、扁的对生叶子和小的球形核,现在普遍种植于美国