coralroot

[kawr-uhl-root, -root, kor-]
noun
a saprophytic orchid of the genus Corallorhiza, of the Northern Hemisphere, having elongated clusters of small flowers on a leafless stem.

Origin:
1850–55; coral + root1

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Collins
World English Dictionary
coralroot (ˈkɒrəlˌruːt)
 
n
any N temperate leafless orchid of the genus Corallorhiza, with small yellow-green or purple flowers and branched roots resembling coral

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

coralroot

any plant of the genus Corallorhiza, family Orchidaceae, consisting of about a dozen species of nearly leafless, nonphotosynthetic orchids that live primarily on dead organic matter with the help of mycorrhizae. One species is Eurasian; the others are native to North and Central America. The name coralroot refers to the coral-like shape of the reddish rhizomes (underground stems)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
In the summer, you may see wildflowers such as spotted coralroot, violets and lupine.
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