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. 2015 Jun 30;11:55. doi: 10.1186/s13002-015-0032-4

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© Schunko et al. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Wild plant products mature in the sun. Obtaining self-made high quality products is a principal motivation for wild plant gathering (Photo: S. Grasser)