Deciduous herbs; bulb subterranean, subglobose, tunicated; outer tunics thinly leathery, brownish and extended as a short neck of narrow, papery segments. Leaves 2, contemporary with flowers, prostrate, oblong to broadly elliptic, glabrous, firm and glossy with veins depressed. Inflorescence a many-flowered raceme, often condensed or corymbose and borne at ground level; peduncle erect and contracted; bract small or the lower large, green or membranous, not spurred; bracteoles lacking; pedicels suberect, short or moderately long, especially lower. Flowers white or pinkish, yellow or bright red, tubular-hypocrateriform, sometimes lower more or less distinctly zygomorphic, in the most extreme case with adaxial tepals highly enlarged, often scented; tepals fused into moderately or very long and often delicate tube, usually suberect, oblong-lanceolate, rarely adaxial highly enlarged and oblanceolate; stamens erect or suberect, filaments firm, inserted at mouth of perianth tube in one series, free or fused together into a short or elongate tube, rarely with mouth of staminal tube occluded by a thickened disc through which style projects, terete; ovary ovoid or obtriangular; ovules several per locule; style terete; stigma apical, minute. Capsule papery, ovoid to obtriangular and then 3-winged, usually dehiscent, rarely tardily dehiscent with style persistent as a beak; seeds few per locule, subglobose, black, smooth or rugulose, testa tightly adhering.