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The dried plant, Cetraria islandica (family Parmeliaceae), a lichen, not a moss, used as a demulcent and as a folk remedy for bronchitis.
Synonym(s): Iceland moss
[L. caetra, a short Spanish shield (from shape of the apothecia)]
Farlex Partner Medical Dictionary © Farlex 2012
A brittle, grayish-brown lichen (Cetraria islandica) of Arctic and alpine regions, sometimes used as a food or in medicine.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.