Acer glabrum Rocky Mountain maple

Acer glabrum Rocky Mountain maple---leaves

Acer glabrum Rocky Mountain maple---seeds

Acer glabrum Rocky Mountain maple---with butterfly

Information from USDA Plants Database

http://plants.usda.gov/java/profile?symbol=acgl

https://www.google.com/search?q=Acer+glabrum+Rocky+Mountain+maple&hl=en&source=lnms&tbm=isch&sa=X&ei=b0FJUdaIF4rEiwLqooHIAQ&ved=0CAcQ_AUoAQ&biw=1034&bih=522