Issue Date: August 23, 1969
City: Seattle, WA
Printed By: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Issued to salute the eleventh International Botanical Congress, this block of four stamps, originally issued attached, was the first set of stamps devoted to flora from each of the four corners of the United States.
The Douglas Fir
The Douglas Fir (Pseudotsuga menziesii) was first discovered by Archibald Menzies in 1791. Menzies, a Scottish physician, first found the tree on Vancouver Island. The tree gets its species name from Menzies. The common name, the Douglas Fir, is named after David Douglas, who was the first to cultivate the tree in 1826.
Douglas Firs average up to 200 feet in height and six feet in diameter, but some have been found as tall as 325 feet tall and 15 feet in diameter. The strong, stiff, and light weight Douglas Firs are commonly used in construction and are popular as Christmas trees. The Douglas Fir was made the state tree of Oregon in 1939.