Though similar in its naming convention, rockwood is not at all related to the mineral-bearing trees like copperwood, ironwood, silverwood, etc. It is the common name for a rare, low growing, widely branching tree with almost moss-like leaf structures. The trunk of the boreal rockwood tree is very short, and its thick branches tend to grow nearly parallel to (and even in places touching) the ground in curving bunches, forming odd, lumpy configurations that often look similar to rock formations.
This strange growth pattern is the source of the tree's name, though the flat tan to greyish color of both the bark and the nearly grainless wood itself also contribute to its rock-like reputation.
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