Maple syrup comes from sugar maple trees (Acer saccharum). Much of the northeastern North America is famous for the production of maple syrup. The same region is also famous for its fall foliage, since its sugar maple trees are as pleasing to leaf peepers as they are to those of us with a craving for pancakes drenched in maple syrup! The photo here shows a sugar maple displaying vibrant yellow autumn garb.
Speaking of "sweet," it's not only the common name of this tree that gives it away as the source for maple syrup: the saccharum part of its Latin name indicates "sugar" and will be familiar to those who have used the articial sweetener, Saccharin.