Content: alkaloids present, efatine, O, O-dimethyl corytuberine, hernandaline, hernandine, hernanymphine and herveline A; arthroquinones detected (Illigera); polyacetate derived; lignans, deoxypodophyllic acid, hernangerine, hernolactone, epimagnolin, epieudesmine, epiaschantin; flavonols kaempferol, quercetin.
Botany: flower ovary inferior; fruit a nut.