Alaska Birch Polypore in Alaska

This is not a mushroom you pick from the ground.

It grows directly from trees.

If you’re walking through a birch forest and see a round, shelf-like growth sticking out of a trunk, you’re likely looking at birch polypore.

Where It Grows

Birch polypore prefers:

• Birch trees
• Dead or dying trunks
• Standing snags and fallen logs
• Forested Interior and Southcentral areas

It is almost always found on birch. If it’s not on birch, it’s not this species.

How to Identify It

The body is:

• Round to slightly oval
• Smooth on top
• White to tan in color

Underside:

• Pore surface (no gills)

It grows directly out of the wood, often in single or small clusters.

Older specimens become tougher and darker over time.

Is It Edible?

No.

Birch polypore is very tough and not considered a food mushroom.

It has been used historically for medicinal and practical purposes, but it is not something you harvest for eating.

Why It Matters in Alaska

This mushroom plays a major role in breaking down wood.

It helps recycle nutrients back into the forest and supports the natural cycle of growth and decay.

If you see it, you’re looking at the forest actively rebuilding itself.