Trees as Weather Indicators
Location: Outside U.S.
Date: Summer 2009
Ihave a small tree limb (branch)which moves up and down with a
weather change-it is very accurate-what tree is it and how does it work?
Possibly related to changes in barometric pressure and temperature:
Similar to the leaf turning question with weather changes:
Anthony R. Brach, PhD
Missouri Botanical Garden
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Update: June 2012