Butternut Leaf Scar
Butternut trees (Juglans cinerea) have very unique leaf scars, which is where last summer's leaf was attached to the tree's twigs. It looks to me like a monkey's face with hairy tan eye brows. This year's bud is just above the 'eye brows' of the monkey.
Butternut grows best on deep, rich, limestone based soils which we have in some locations here at Distant Hill Gardens. However, this native tree is becoming quite rare due to the Butternut Canker fungus (Sirococcus clavigignenti-juglandacearum). It can infect and kill healthy trees of any age and size.
The species is not listed as threatened federally in the US, but is listed as "Special Concern" in Kentucky, "Exploitably Vulnerable" in New York State, and "Threatened" in Tennessee. Canada placed the butternut on their endangered species list in 2005.