Biology Terminology Photo Blog

22. Heartwood

This is a photo of a toppled over stump in my backyard. The darker rings around the inside of the stump are known as heartwood.  Heartwood is the older, dead, central wood of a tree, which is generally darker and firmer than the younger wood. Heartwood can also be referred to as the duramen.

Heartwood is as a result of a chemical transformation that happens naturally, and has become more resistant to decay. Heartwood forms randomly and it is not a programmed process. Once heartwood formation is complete, the heartwood is no longer living.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s