For bigtooth aspen, just think bigger! Compared to the quaker, it has bigger teeth on the leaves, and is just a bigger tree all together. The bark is not quite as pale, and more likely to turn dark and scaly on larger trees. The wood is soft, mostly used for pulp and particle board. Might be some of this in my new roof? Bigger doesn't necessarily mean more successful. Bigtooth has a much more limited range than its quaking kin, growing most often in sandy soils in CT, DE, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, ND, NE, NJ, NH, NY, OH, PA, RI, TN, VA, VT, WI, WV, BC, MB, NB, NS, ON, PE, and QC. Lenawee Co MI, 3/18/12. Willow family, Salicaceae.