Douglas fir:
Douglas fir, with the scientific name "Pseudotsuga menziesii", also known as Oregon pine or Douglas spruce, is an evergreen conifer species native to western North America.
en.wikipedia.org
花旗松:
花旗松（學名："Pseudotsuga menziesii"，Douglas-fir、Oregon pine、Douglas spruce，又稱北美黃杉）是原產於美國西北部的一種常綠裸子植物。
zh.wikipedia.org
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Douglas fir花旗松