Xanthorhiza simplicissima (yellowroot) is the only member of the genus Xanthorhiza, and one of very few genera in the family Ranunculaceae with a woody stem (the other notable example being Clematis). It is native to the eastern United States from Maine south to northern Florida and west to Ohio and eastern Texas. It contains the alkaloid berberin...
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http://en.wikipedia.org/wiki/Xanthorhiza
• (n.) A genus of shrubby ranunculaceous plants of North America, including only the species Xanthorhiza apiifolia, which has roots of a deep yellow color; yellowroot. The bark is intensely bitter, and is sometimes used as a tonic.
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http://thinkexist.com/dictionary/meaning/xanthorhiza/
<botany> A genus of shrubby ranunculaceous plants of North America, including only the species Xanthorhiza apiifolia, which has roots of a deep yellow colour; yellowroot. The bark is intensely bitter, and is sometimes used as a tonic. ... Origin: Gr. Xanqos = yellow, riza = root. ... (09 Mar 1998) ...
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http://www.encyclo.co.uk/local/20973
Xan`tho·rhi'za noun [ New Latin , from Greek
xanqo`s yellow +
'ri`za root.]
(Botany) A genus of shrubby ranunculaceous plants of North America, including only the species
Xanthorhiza apiifolia , which has roots of a deep yellow color; yellowroot. The bark is intensel...
Found on
http://www.encyclo.co.uk/webster/X/1
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