Manzanita or Arbutus menziesii. Arbutus- the classical Latin name of Arbutus unedo, the strawberry mandrone of souhern Europe; menzesii- after it's discoverer, Archibald Menzies,1754-1842, Scottish physician and naturalist. Also goes by the names Laurel, Manzanita, and Madrone. Grows on the Pacific coast from British Columbia to the Redwood forests of Northern California. It presents extreme difficulty in drying as it warps badly and cracks easily. However it is a beautiful wood for making fine furniture. It is particulary suitable for turning things like bowls and pens, as it polishes almost to a the fine smoothness of Holly. Large burls are sought after by furnature makers and inlayers. Mandrone wood is in great demand by the manufactures of gun power, as they find this one of the best sources of charcoal suitable for it's making. It turns like any other burl with grains going in all directions. May contain sand or small rocks, so use sharp tools and safety glasses. I soak my blanks with thin CA before drilling, after drilling, and during turning. Turn with light pressure and small cuts. Makes up some beautifu pens. Russ, I am sure this was more information than you were asking for, but makes good conversation when selling your pen. Jim S