American elm nursery. Plant geneticist (left) and gardener (right) observing young American elm trees (Ulmus americana) being grown in a tree nursery.

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American elm nursery. Plant geneticist (left) and gardener (right) observing young American elm trees (Ulmus americana) being grown in a tree nursery. This research is being carried out by the Agricultural Research Service of the US Department of Agriculture. Photographed at the US National Arboretum's field site at Glenn Dale, Maryland, USA.

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Size: 2409px × 3627px
Photo credit: © SCOTT BAUER/US DEPARTMENT OF AGRICULTURE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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