In a new study, researchers used more than 5 million measurements from individual trees across much of eastern North America and showed the rate at which introduced species are spreading has increased ...
“It looks like the Natural Land Institute’s Legacy Tree Program has found yet another Illinois state champion tree: a rare American chestnut (Castanea dentata) in Freeport,” said Alan Branhagen, ...
Rev. ed. of: Book of trees. 1957. siris_sil_681569 ...
On Verona Island, at the end of a dirt road, a couple dozen wizened apple trees stand sentry in a grassy field sloping down to the river. To the untrained eye, it's a bunch of old trees. To apple ...
In the largest study of its kind, researchers at the Florida Museum of Natural History have used data from a 120-year-old program managed by the U.S. Department of Agriculture to quantify the effects ...
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