Epilobium halleanum Hausskn.  

Family: Onagraceae

glandular willowherb, more...Glandular Willowherb, Hall's willowweed, Halls willowherb

[Epilobium brevistylum var. subfalcatum (Trel.) Munz, moreEpilobium brevistylum var. tenue (Trel.) Jepson, Epilobium glandulosum var. tenue (Trel.) C.L. Hitchc., Epilobium hallianum Hausknn., Epilobium pringleanum Hausskn., Epilobium pringleanum var. tenue (Trel.) Munz]