- Plant: Field Horsetail (Equisetum arvense)
- Uploaded by SongofJoy
- Info: Stem, scape, stalk or bark / 2004-05-18 / License: Creative Commons (cc-by-sa-nc-3.0) (Attribution, ShareAlike, NonCommercial)
- Caption: Steven J. Baskauf http://bioimages.vanderbilt.edu/