Bark – grayish with interlacing ridges and alternating light and dark layers of inner bark. American elm (Ulmus americana) is a member of the Ulmaceae family, a group that includes 16 genera and ...

Elm trees grow big and beautiful, with tree branches that start tall on the trunk and spread outward like an umbrella, making them a popular breed throughout the U.S. This creates a regal look ...

Interstate 25 north of the metro area started off 2025 with icy conditions. Dan Daru is out on the road with the latest. A few new road laws went into effect in Colorado on Jan. 1, 2025. Carly ...

American elm trees (Ulmus americana) were once very common as forest and landscape trees in the eastern U.S. Their graceful vase shape and wide canopy made them especially popular for lining city ...

Since the Siberian elm is non-native and appears to have resistance to the disease, it has been used to cross with the American elm (U. americana) in order to produce an American elm-appearing hybrid ...

The concepts, techniques, and gene cassettes we develop for the American chestnut will have broad applications in managing diseases affecting other important tree species such as Dutch-elm disease and ...