Perennial, geophytic herb, 170-500 mm high. Stem single, erect, pubescent. Leaves spreading; blade narrowly ovate, occasionally falcate but rarely linear or narrowly elliptic, 5-130 x 0.3-7.0 mm. Flowers: 1-3 inflorescences, with 4-16 flowers per plant; peduncles sessile or up to 10 mm; pedicels 6-16 mm; corona lobes cup-shaped with a broad central appendage in sinus, not exceeding gynostegial column; anther appendages deeply cleft; corolla lobes not fully reflexed, ovate to elliptic and free to base, yellow or yellow-brown, yellow with occasionally purple or lilac on inside, outside yellow, brown or purple; Oct.-Jan.