Parietaria officinalis
English: Pellitory-of-the-Wall; Eastern pellitory-of-the-wall; Upright pellitory; Lichwort.
German: Glaskraut
Botany: grows on rubbish and on walls; leaves are non-stinging
Use: in metheglins.
Content: potassium, nitrogen; flavonoids, kaempferol-3-bioside; 3-glucosides; 3-rutinosides of quercetin, kaempferol and isorhamnetin, 3-sophorosides of quercetin and kaempferol and 3-neohesperosides of kaempferol and isorhamnetin; caffeoylmalic; two pyrrole acids.
Source: Cooper.