1.
Leucojum aestivum
Linnaeus, Syst. Nat. ed. 10. 2: 975. 1759.
Summer snowflake
Plants to 30—60 cm; bulb 2—4 × 2—3(—4) cm. Leaves: sheaths 3—6 mm, membranous; blade deep green, linear to ligulate, 30—50(—70) × 0.5—2 cm, apex obtuse, glossy, well developed at anthesis. Scape stout, hollow, 2-winged, compressed, (20—)30—60 cm. Spathe bract solitary, fused, green, lanceolate, 3—5 cm. Flowers: tepals white with yellowish green spot near apex, broadly ovate, (10—)13—22 × 10—12 mm; filaments white, slender, 2—5 mm; anthers 5—6 mm; ovary oblong-ovate, 6—10 × 5—8 mm; style clavate, 5—10 mm, exceeding stamens; stigma truncate, inconspicuous; pedicel 2.5—7 cm, longest equaling or exceeding spathe. Seeds black, 5—7 mm; coat loose, with air pockets at each end. 2n = 22, 24.
Flowering spring--early summer. Roadsides, fields, waste places; 0--500 m; introduced; N.S.; Ala., Ark., Conn., Del., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Miss., N.Y., N.C., Ohio, Pa., S.C., Tenn., Tex., Va.; c, s Europe; naturalized throughout temperate areas.
