Do native maple trees bear flowers? If so, what do they look like? How can I recognize them?
What are pussy willows doing now? Stamens have emerged from the male catkins and are releasing pollen grains.
Here in the Pacific NW, we had an uncommonly cold and snowy February. Did this affect the new buds on trees and shrubs?
This week, the Google play store showed that downloads of the Android version of “Trees PNW” jumped from 1,000+ to 5,000+.
Pallets travel around the globe literally supporting the world’s goods. Sometimes they contain unwanted stowaways—wood-boring beetles that can wreak havoc in a foreign environment.
On the western redcedars in my area, some foliage has turned completely red-brown and appears to be dead. Are these trees dying? Or is this normal?
When you play in the woods, I hope you get sap all over your hands. How do you get it off? Here’s the trick.
Something is causing green Douglas-fir cones to fall from the trees before they are ripe. And, the cones are getting piled up into mounds. Who’s doing this?
I’ve been sweeping zillions of tiny, brown, cone-like structures off of my driveway. They are male pollen cones from Douglas-firs, Pseudotsuga menziesii.
Douglas-fir cones are re-appearing again after a year of no cones.
What are those droopy green clusters hanging from bigleaf maples in every park and forest west of the Cascades?
Old-growth forests, at least in large swaths, are nearly gone from the Pacific NW. To even try to restore old-growth forests will take hundreds of years of careful stewardship. But small tracts of old-growth and individual big trees occur sporadically throughout the Pacific NW, especially in parks. Have you seen a big tree? Do you know where to look? Prepare to be awed!
Let's take apart a Douglas-fir cone with a pair of kitchen shears. What's inside?
For old cones, you'd expect that most or all of the seeds are gone, which is what we find.
What do Douglas-fir seeds look like? How many are there?
And finally, read this for a trick question ...
Did you know that small distilleries are springing up in central Oregon to produce gin from the "berries" of locally abundant western junipers?
In the fall, leaves on alder trees remain stubbornly green, even after they fall to the forest floor. This is because alder trees do not remove the green chlorophyll from the leaves before sending them to "recycling." Why not?
Which characteristic of Alaska yellow-cedars do you think gave rise to the name "yellow?" There are several possibilities ...
This is the season that winged seeds of maple trees helicopter down to the ground. What advantage do the whirling seeds provide to maple trees?
Why does this subalpine fir have no branches on one side? Is it because of rockslides and avalanches? Or wind? Or plant hormones? It appears to me that biologists have not yet come up with a conclusive answer.
What is a tree that lives only in the coldest and harshest ecosystems at timberline in the northern Cascades?
Norway maple has been widely planted in North America as a landscape tree and along city streets. In return, grand fir from the Pacific Northwest has been introduced in Norway.