Stems: scapes broadly winged. Leaves: much shorter than the scapes, bracts of the spathe more or less unequal, the longer about equalling the pedicels. Flowers: bright yellow, segments of the perianth obtuse or acutish, style cleft to below the middle. Fruit: capsule obovate-oblong.
This plant has a name which is rather an anomaly. The tall, broadly-winged scapes are two-edged, and have a solitary, sessile spathe, while the leaves are shortish and narrow. The bright yellow flowers are extremely attractive.