Quartersawn Sycamore
These are called medullary rays. They carry nutrients and water from the heart to the bark. They are most visible when the wood is cut right through the center of the trunk.
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From @skycranehandwork
Quartersawn Sycamore
These are called medullary rays. They carry nutrients and water from the heart to the bark. They are most visible when the wood is cut right through the center of the trunk.