Sawed down a SUMAC to look at it inside and out. Twigs fuzzy–feel like they’re covered with velvet. Buds look like they’re covered with brown hair. Leaf scar almost surrounds the bud–like a heart-shaped, clasping V. The fruits are little red furry seeds packed in a tight cluster at the tips of some branches. Brown bark, then a few thin green layers, then a white layer, then a yellow-green (chartreuse) series of rings, then a cottony center. Bob made me a napkin ring out of a segment of a branch. He says live or dead wood is about equal to work with.