Heartwood Forest is to grow into the largest new native woodland in the country.
From the telegraph.co.uk
Yew sapwood is good only in tension, while the heartwood is good in compression.
From the en.wikipedia.org
The heartwood is golden to dark brown, and sapwood white to pale brownish white.
From the en.wikipedia.org
Heartwood is a powerful singer-songwriter and part of the indie duo, Wishing Chair.
From the toledoblade.com
The bacteria infect the heartwood and ferment the sap, producing high sap pressure.
From the sacbee.com
Tamarind timber consists of hard, dark red heartwood and softer, yellowish sapwood.
From the en.wikipedia.org
Hard-bracket fungi live on dead heartwood and only enter trees late in their lives.
From the newscientist.com
The system sends sound waves through the trunk that respond to the heartwood.
From the sciencedaily.com
Dried heartwood billets are nearly white and are suitable for decorative use.
From the en.wikipedia.org
More examples
The older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood
Wood is a hard, fibrous tissue found in many plants. It has been used for centuries for both fuel and as a construction material for several types of living areas such as houses, known as carpentry. ...
The wood nearer the heart of a stem or branch, different in color from the sapwood
The wood extending from the pith to the sapwood, the cells of which no longer participate in the life processes of the tree.
The inner layers of wood in growing trees that have ceased to contain living cells. Heartwood is generally darker than sapwood, but the two are not always clearly differentiated.
Inner rings of xylem that have become clogged with metabolic by-products and no longer transport water; visible as the inner darker areas in the cross section of a tree trunk.
The central core of wood in a tree that no longer produces sap and tends to be dark in color.
Inner wood (nonfunctioning xylem) that gives strength to the trunk.
The area next to the pith, which is composed of deal cells and serves as support