Parietaria debilis G. Forst. Parietaria debilis G. Forst., Fl. Ins. Austr.: 73. 1786 sec. Monro 2009=Parietaria micrantha Ledeb. in Icon. Pl. 1: 7. 1829 syn. sec. ???=Parietaria obtusa Rydb. ex Small, Fl. S.E. U.S.: 359, 1329. 1903 syn. sec. ???