Plants to 7-20(-40) cm; bulbs 1.5-2.5 × 1-1.5(-2) cm. Leaves: vernation flat and parallel, remaining so within basal sheath; blade linear to ligulate, 5-15 × 0.3-0.7 cm. Spathe 2-3.5 cm. Flowers: outer tepals white, oblong to broadly obovate, 1.5-2(-2.5) × 0.6-1.1 cm; inner tepals white with green blotch at apex only, narrowly obovate or oblong, 7-12 × 4-6 mm; anthers 3-5 mm; ovary 5-6 × 3-4 mm; style 6-8 mm; pedicel 1.2-3(-4) cm.
Flowering late winter--early spring. Roadsides, open forests, abandoned gardens; 0--500 m; introduced; N.B., Nfld. and Labr. (Nfld.), Ont.; Md., Mass., Mich., N.J., N.Y., N.C., Ohio, Pa., Utah, Va.; Europe (Spain to w Russia); expected elsewhere.
From Flora of Indiana (1940) by Charles C. Deam
Indiana Coefficient of Conservatism: C = null, non-native
Wetland Indicator Status: N/A
Diagnostic Traits: scapose, leaves 2, up to 10 mm wide; flowers 1 per scape, nodding on slender pedicel; inner tepals with green markings at the tips and smaller than the outer tepals; ovary inferior.