Sunday, April 17, 2011

A Forgotten Tree

I forgot to include this young Douglas-fir in my previous post. It, too, is a member of the Pinaceae, and is called by scientists Pseudotsuga menziesii. I'm sure you wanted to know that.
How do we know it's Douglas-fir? First of all, its needles are attached singly to the branch and are not in bundles. When the cones develop, its difference from our White Fir and Red Fir, not to mention the many true firs of the Northwest, will become apparent. Its technical name means false fir, of course. It is easily distinguished from these other two local firs by the fact that its needles grow from completely around the twig rather than create a flattened bough by growing out each side. Distinguishing Red from White Fir is not quite so easy, but we'll get to that later.

No comments:

Post a Comment