*''[[Erythronium japonicum f. leucanthum]]'' (I.Yamam. & Tsukam.) [[Okuyama]], J. Jap. Bot. 30: 32 (1955).
*''[[Erythronium japonicum f. immaculatum]]'' [[P.Y.Fu]] & [[Q.S.Sun]], in Fl. Liaoningica 2: 1159 (1992).<ref name = Kew>{{cita web |url=http://apps.kew.org/wcsp/namedetail.do?accepted_id=305780&repSynonym_id=-9998&name_id=305780&status=true |título= ''{{PAGENAME}}''|fechaacceso=19 de abril de 2010 |formato= |obra= [[Royal Botanic Gardens, Kew]]: World Checklist of Selected Plant Families}}</ref>