Leucojum aestivum

Linnaeus

Syst. Nat. ed. 10, 2: 975. 1759.

Common names: Summer snowflake
IntroducedIllustrated
Treatment appears in FNA Volume 26. Treatment on page 293. Mentioned on page 286.

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.


Phenology: Flowering spring–early summer.
Habitat: Roadsides, fields, waste places
Elevation: 0–500 m

Distribution

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

Discussion

Selected References

None.

Lower Taxa

None.

"longest" is not a number."thicker" is not a number.

... more about "Leucojum aestivum"
blunt +  and conic +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Gerald B. Straley† +  and Frederick H. Utech +
Linnaeus +
whorled +, opposite +  and alternate +
dilated +
50 cm500 mm <br />0.5 m <br /> (70 cm700 mm <br />0.7 m <br />) +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sheathing +  and involucrate +
1;several +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2cm +  and 4cm +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Summer snowflake +
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 +  and naturalized throughout temperate areas +
0–500 m +
connate-coroniform +  and dilated +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and pedicellate +
unisexual +  and bisexual +
loculicidal +
pyriform +  and subglobose +
membranaceous +  and leathery +
Roadsides, fields, waste places +
spathaceous +, 2-5(-7)-flowered +  and umbellate +
paired +, paniculate +  and racemose +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
oblong-ovate +
5mm;8mm +
many;several +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
exceeding spathe +  and equaling +
zygomorphic +  and actinomorphic +
campanulate +
Flowering spring–early summer. +
Syst. Nat. ed. +
2-winged +  and hollow +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
compressed +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
wind-distributed +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Introduced +  and Illustrated +
yellowish green +
staminodial +
inconspicuous +
1 +  and several +
3 +  and 1 +
clavate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Leucojum aestivum +
Leucojum +
species +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
distinct +
13mm;22mm +
10mm;12mm +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +
12 +, 11 +, 10 +, 9 +, 8 +  and 7 +