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Wind Cave National Park
Trees - Hackberry
Hackberry - Celtis occidentalis
NPS Photo by Marie Curtin
Hackberry - Celtis occidentalis
 
The Hackberry has leaves very similar to the American Elm.  It is at its northern-most range in the Black Hills in the park.  By mid-to-late summer the Hackberry produces green to orange fruits which are eaten by birds.

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Blue Flax

Did You Know?
Blue Flax is often considered a subspecies of the Eurasian L. perenne which is very similar. The plant is named after Meriwether Lewis.
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Last Updated: September 16, 2007 at 11:13 MST