Populus trichocarpa

（重定向自Western Balsam Poplar）

Male (pollen-producing) catkin and leaf buds (March 22)Sherwood, Oregon, USA

Seeds and Fluff of Cottonwood (July 1, 2012) Boise, Idaho, USA

Populus trichocarpa, the black cottonwood, western balsam-poplar or California poplar, is a deciduous broadleaf tree species native to western North America. It is used for timber, and is notable as a model organism in plant biology. Its full genome sequence was published in 2006. It is the first tree species to be sequenced.

单词	Western Balsam Poplar
释义	Western Balsam Poplar 英语百科 Populus trichocarpa （重定向自Western Balsam Poplar） Populus trichocarpa, the black cottonwood, western balsam-poplar or California poplar, is a deciduous broadleaf tree species native to western North America. It is used for timber, and is notable as a model organism in plant biology. Its full genome sequence was published in 2006. It is the first tree species to be sequenced.
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