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Orchids 101: The biology behind these elegant flowers

By: Anna Norris on Jan. 21, 2014, 9:19 a.m.
Bonnet orchid

Photo: Anna Norris

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Orchids high and low

Orchids can grow in a variety of conditions, from the warm tropics to the freezing Arctic Circle. They can grow hanging from trees and even beneath the soil. Each orchid species has its own unique requirements to flourish, like the Dendrobium alexandrae shown here, which grows best on mossy trees in mist-filled forests.