wall rue

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noun

a small, delicate fern, Asplenium rutamuraria, having fan-shaped leaflets and growing on walls and cliffs.

Origin of wall rue

First recorded in 1540–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for wall rue

wall rue

noun

a delicate fern, Asplenium ruta-muraria, that grows in rocky crevices and walls in North America and Eurasia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012