1 Maple Tree Tar Spot Identification Black spots that range in size from a pinprick to the size of a half dollar (4 cm)Some reports say that the spots can get as big as two inches Caused By Fungi that tend to hide in leaf debrisSpecific species include Rhytisma acerinum, R americanum, and R punctatum;BIG LEAF MAPLE WOOD Big Leaf Maple grows in the Pacific Northwest In this region it is fairly common, but figure mutations of curl, burl and quilt are quite rare Only one tree out of hundreds will be figured, but the figure is often exceptional My favorite is the quilt, then the burl Big Leaf Maple with curl is beautiful but not betterBig Leaf Maple (Burly Figure) Products Note our wood products are sold with no guarantee of moisture content Send us an email or call (800) with any questions or to request more specific photos of a piece Autumn Blaze Maples A Beautiful Fragile Tree That Needs Regular Care Silver leaf maple wood