CC BY 3.0 https://creativecommons.org/licenses/by/3.0/:
Stinging tree: By Cgoodwin, https://commons.wikimedia.org/w/index.php?curid=3380257
Stinging Tree: By Rainer Wunderlich – https://flic.kr/p/cHBLWU, https://commons.wikimedia.org/w/index.php?curid=20492345
Detail showing stinging hairs: By N. Teerink, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/w/index.php?curid=73864385
YouTube: https://www.youtube.com/channel/UChQtq0f3T1peK2w4olNyWYw
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