- Bernheim: Betula lenta - sweet birch
- Provides data on the distinguishing characteristics of the plant. Includes horticulture information, conservation, uses and photos.
- Betula lenta
- Presents information on the on the habitat, foilage, flowers, fruit, culture and propagation. With photos and liabilities.
- NorthEastern Area State and Private Forestry: Sweet Birch
- Provides data on the habitat, life history, genetics, uses and distribution. With photos.
- Ohio Public Library Information Network: Black Birch
- Contains information on the features of the plant. Includes anatomy and photos.
- Plants for a Future: Betula lenta - L.
- Provides information on the physical characteristics of the plant. Includes uses, cultivation and propagation.
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