Birch, genus of about 40 species of short-lived ornamental and timber trees and shrubs of the family Betulaceae, distributed throughout cool regions of the Northern Hemisphere. They are valuable in reforestation and erosion control, and many are cultivated as ornamentals for their attractive foliage and bark.
How to tap birch trees for drinkable sap - Men's Journal
Yellow Birch - Betula alleghaniensis
Foraging and Using Birch: Bark, Leaves, & Sap
Neat Factoids On Birch Trees That Will Surprise You - PPM Tree Service & Arbor Care, LLC
Silver birch
Betula nigra River Birch
Birch - Wikipedia
Yellow Birch - Betula Allegheniensis, Deciduous Trees
Whitebarked Himalayan Birch, Betula utilis var. jacquemontii
Birch Tree: How to Grow + 11 Most Common of Birch Trees
River Birch Home & Garden Information Center
Birch facts and information
Betula (Birch) - Pests and Diseases to Watch Out For
The Complete Guide to a River Birch Tree - Mehrabyan Nursery