Sirdavidia solannona A flowering branch B flower C sepal, outer side view D sepal, inner view E flower bud F outer petal, outer view G detail of pubescence of outer petal, outer side H outer petal, inner view I inner petal, outer view J detail of pubescence of inner petal, outer side K inner petal, inner view L detail of pubescence of inner petal, inner side M stamen from inner whorl N stamen from outer whorl O longitudinal section of carpel showing uniseriate row of ovules (stigma missing) P detail of young fruit A–P from Couvreur 596, 597. Drawing by Hans de Vries (Couvreur et al. 2015, fig. 3, p. 8).