Definition of Parietaria
: a small genus of widely distributed stingless herbs (family Urticaceae) with alternate entire leaves and small greenish flowers in the leaf axils — see pellitory 2
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Origin and Etymology of parietaria
New Latin, from Late Latin, pellitory-of-the-wall, from feminine of parietarius of a wall, from Latin pariet-, paries wall + -arius -ary — more at paries
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