Yes, you can make syrup from several types of trees other than maples!

Here are some notable alternatives:

1. Birch Trees: Birch sap can be harvested to make syrup, although it requires a significant amount of sap—about 150-200 gallons to produce one gallon of syrup. Birch syrup has a unique flavor that is different from maple syrup, often described as more earthy and slightly less sweet.

2. Walnut Trees: Black walnut trees can also be tapped for syrup. The syrup produced from walnuts has a nuttier flavor compared to maple syrup. However, the sap from walnut trees contains higher levels of pectin, which can complicate the syrup-making process.

3. Beech Trees: Beech sap can be tapped similarly to birch and walnut. The syrup made from beech sap is less common but can be quite flavorful.

4. Box Elder Trees: Also known as Manitoba maple, box elder produces sap that can be tapped for syrup. However, the flavor is generally less sweet and more watery compared to traditional maple syrup.

5. Red Maple Trees: While technically a type of maple, red maples can produce syrup as well, though the sugar concentration is lower than that of sugar maples.

Research is ongoing into the potential of tapping non-maple trees for syrup production, with studies focusing on birch and beech trees, among others.

Here are some images related to syrup production from various trees:

If you're interested in trying to make syrup from these trees, be sure to research the specific tapping and boiling processes for each type!