Quillaia is the milled inner bark or small stems and branches of the soapbark (Quillaja saponaria, Molina). Other names include China bark extract, Murillo bark extract, Panama bark extract, Quillai extract, Quillaia extract, Quillay bark extract, and Soapbark extract. It contains a high concentration of saponins which is increased by processing; ...
Found on http://en.wikipedia.org/wiki/Quillaia


South American tree whose bark is used to make soap
Found on http://phrontistery.info/q.html
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