Scape 2-4 dm; lvs 3-4 dm, ca 1 cm wide, obtuse; bract foliaceous, 3-5 cm; fls 2-8, on long drooping peduncles; perianth campanulate, ca 2 cm, the tep white, edged with green; 2n=22, 24. Native of Europe, locally established in our range as an escape from cult.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.