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Why Scotland's native aspen trees tremble – and have good reason to do so
Aspen has distinctive, almost-circular leaves with flattened petioles or stems. This flattening causes the leaves to tremble or flutter in the slightest breeze, thereby giving the tree one of its ...
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Drought, higher temperatures, hungry elk threaten aspen trees near Flagstaff
FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike Stoddard is looking down. His concern isn’t the brilliant fall ...
BBC2mon
Efforts under way to save endangered Aspen trees
Trees for Life Aspen is characterised by shimmering foliage in the summer and striking golden yellow leaves in the autumn Trees for Life said Aspen was an essential part of the ancient Caledonian ...
Nature5y
Case Study: The Glorious, Golden, and Gigantic Quaking Aspen
The ability of aspen to produce whole stands of "trees" vegetatively provides yet ... Why do quaking aspen leaves quake and tremble? The leaves of this species quake, shake and tremble in the ...