Perennial geophyte, ± 0.25 m high. Leaves green at flowering, linear, ± 1.5 mm wide. Flowers 2 or 3(-5), suberect; perianth inflated shortly above base into a broad tube, ± 20 mm long, yellow, tube longer than segments; stamens hidden in tube; stigma 3-lobed. Flowering time Aug.-Oct.