pellitory

n. [ OE. paritorie, OF. paritoire, F. pariétaire; (cf. It. & Sp. parietaria), L. parietaria the parietary, or pellitory, the wall plant, fr. parietarius belonging to the walls, fr. paries, parietis a wall. Cf. Parietary. ] (Bot.) The common name of the several species of the genus Parietaria, low, harmless weeds of the Nettle family; -- also called wall pellitory, and lichwort. [ 1913 Webster ]

☞ Parietaria officinalis is common on old walls in Europe; Parietaria pennsylvanica is found in the United States; and six or seven more species are found near the Mediterranean, or in the Orient. [ 1913 Webster ]