The American elm features an open, spreading crown and drooping limbs that form a vase shape. American elm is a common tree in many riparian forest areas or moist soil forest areas. The species used ...

These 5 tree species are dying. Scientists are racing to save them. Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on ...

The most common North American deciduous trees are elm, willow, beech, cherry, birch, and basswood. These trees each have their own unique qualities, from the heart-shaped leaves of the birch to ...

The leaf of an American elm tree. (Tamara Yakaboski, Special to The Denver Post) ... There also are species of elms that are Dutch-elm-disease-resistant and not native to the United States.

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal ...

The shape of trees, in part, is caused by genetics. A Red Maple has a different shape and structure than an American Elm tree because their cells contain a different set of genes passed down from the ...

One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs. But as the city finalizes plans to take down the Barton Avenue landmark next week, a University ...