Herb, glaucous; stock short; scapes erect, to 1 m tall. Leaves shortly petiolate, obovate, dentate, glabrous; lamina to 20 cm long, to 7 cm wide. Bracteoles connate into funnel-like disc, to 12 cm diam., often split on one side. Sepals ± free, dentate; adaxial one broadly elliptic, 15–18 mm long. Corolla 20–25 mm long, pubescent outside, bearded inside, with enations, deep or brownish yellow; wings much shorter than adaxial lobes, to 1 mm wide. Ovary with septum swollen, to 1/2 as long as locule; ovules c. 20; indusium transversely oblong, c. 5 mm wide, lips ± glabrous towards centre. Capsule ovoid. Seeds orbicular, 8–9 mm diam., punctate; wing c. 2 mm wide.