Fl. 86mm wide, facing upwards; perianth segments 36mm long, broadly ovate, blunt or truncate, slightly mucronate, a little reflexed, plane or with margins incurved, with midrib showing, of heavy substance, overlapping half; the inner segments narrower, more nearly spreading, scarcely mucronate, shouldered at base; corona 20mm long, cylindrical, angled, mouth narrowly ribbed, a little expanded, lobed and lightly frilled, with rim flanged and notched. 

Named for registrant’s favorite sister.