Published in 1832 (name suggested by Sabine) in Desc. Pinus (ed. 3) 2: t.47 & 78, #43, based on the plants collected by Douglas now at Kew.
...I gladly adopt the name of P. Douglasii, in honour of the indefatigable botanist, to whom I am indebted for the specimens from which I have been enabled to complete my description and plates of the species.
Synonym of Pseudotsuga menziesii (Mirb.) Franco.