growth ring

They grow in the desert and do not have growth rings.

The stump is 4 feet wide and has 160 growth rings.

The thin, white shell is long and narrow with growth rings.

The surface is smooth and often has distinct growth rings.

After checking its growth rings, he confirmed that it was 22 years old.

As measured by its growth rings, one fallen tree was found to be 347 years old.

Growth rings, for example, offer clues to the strength of the wood.

It has low, rounded ribs and the annual growth rings can be seen.

Growth rings are not visible and there is no change in the wood texture.

Many trees in places with hot summers and cold winters make one growth ring a year.

Cut all the way though a tree horizontally, like a stump, to find the growth rings.

In the pit was growing a hemlock nearly 400 years old by the number of growth rings.

Growth rings are clearly evident in most individuals but become worn smooth with age.

This was based on using older native forest wood with a high number of growth rings per inch.

Each fire leaves a different scar on a different growth ring.

The tube was marked by growth rings which formed ridges.

Cores on very old trees give information about their growth rings without destroying the tree.

The heartwood is golden to dark brown with chocolate growth rings.

Particular attention is invited to the growth ring patterns visible in the images attached.

Shakes look like cracks, but they are actually hollows between the growth rings.

If you like a challenge, you could try counting the annual growth rings.

Many of the tree trunks, though only an inch thick, contain 80 or more growth rings.

There is also sculpturing in the form of concentric growth rings.

Every turtle is measured, and the annual growth rings on its lower shell are counted.

The newest growth ring in a tree is called the sapwood layer.