Which one is native to the Pacific Northwest?

Three of these might be found on your dinner table. The other is a native tree of the Pacific Northwest. Which are which?

New Douglas-fir cones?

Are you seeing new green cones on Douglas-firs this year? I’m not.

What's a maple flower?

Do native maple trees bear flowers? If so, what do they look like? How can I recognize them?

Pussy willows are releasing pollen

What are pussy willows doing now? Stamens have emerged from the male catkins and are releasing pollen grains.

After Snowpocalypse, how are the trees doing?

Here in the Pacific NW, we had an uncommonly cold and snowy February. Did this affect the new buds on trees and shrubs?

Android version of "Trees PNW" reaches 5,000+ milestone

The Google play console now shows more than 10,000 downloads of the Android version of Trees PNW.

The Hidden Scourge of Pallets

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.

Are western redcedars dying?

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?

How do you clean sap from your hands / clothes?

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.

Why are Douglas-fir cones falling when they're still green?

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?

What are those tiny brown cones that are covering my driveway?

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.

Cones on Douglas-firs this year!

Douglas-fir cones are re-appearing again after a year of no cones.

Bigleaf maples: zillions of flower clusters

What are those droopy green clusters hanging from bigleaf maples in every park and forest west of the Cascades?

The wonder of big trees

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!

Douglas-fir seeds: a trick question

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 ...

Gin made from central Oregon's western junipers

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, why are alder leaves on the forest floor still green?

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?

Why is Alaska yellow-cedar called "yellow?"

Which characteristic of Alaska yellow-cedars do you think gave rise to the name "yellow?" There are several possibilities ...

Maple seeds: nature's helicopters

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?

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.