Image: JoePyeWeedStem
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Description: Stem of Joe Pye weed (Eutrochium fistulosum) showing the fistula or hollow from which the plant takes its latin name. The hollow is lined with pith and higher in the stem (shown to the right) the pith completely fills the stem. The plant was collected in Iowa City, Iowa and photographed the same day.
Title: JoePyeWeedStem
Credit: Own work
Author: Douglas W. Jones
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No
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