
Effectively a sugar maple variant — often classified as Acer saccharum ssp. nigrum — told apart by darker, droopier, mostly three-lobed leaves and small leafy stipules at the base of the leaf stem. It matters practically because it handles heavy, moist clay better than true sugar maple, yet it is routinely sold, mapped and invoiced as sugar maple, so what a homeowner believes they own often is not what is in the yard.
Large tree · $400–$1,900 typical
Also searched as black sugar maple, hard maple, rock maple.