我国是丁香属的自然分布中心，同时也是丁香栽培的起源中心。
Our country is the center of the nature geography distributing of the clove, and is the origin center place for planting the clove.
中国是丁香属的自然分布中心，丁香主要分布在中国西南、西北、华北、东北等地区。
China was the distribution center for Syringa. The species were distributed in Southwest, Northwest, North and Northeast China.
中国西南地区乡土杨树基因资源丰富，被认为是青杨组的现代自然分布和演化中心之一。
There are abundant genetic resources of poplars in southwest China, which is believed as a centre of Sect.
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