Allium ampeloprasum

Linnaeus

Sp. Pl. 1: 294. 1753.

Common names: Wild leek
Introduced
Treatment appears in FNA Volume 26. Treatment on page 238. Mentioned on page 225, 226, 228, 239.

Bulbs 1–3+, variable, some with poorly developed bulbs, others ovoid with 1–2 large bulbs and several yellowish to light-brown bulbels at base, 0.4–1 (–3) × 0.4–1 (–1.5) cm; outer coat enclosing 1 or more bulbs, yellowish, membranous; inner coats white to light-brown, cells not evident, fibers ± parallel, few. Leaves withering from tips by anthesis, 6–9, sheathing 1/3–1/2 scape; blade solid, flat, channeled, 1–5 cm × 2–20 (–30) mm, margins scabrid. Scape persistent, solitary, erect, fistulose, terete, 45–180 cm × 3–7 mm. Umbel persistent, erect, compact, to 500-flowered, few-flowered in variants with bulbils, globose; spathe bracts persistent, 3–5, 2–3-veined, lanceolate, ± equal, apex abruptly narrowed to beak, beak to 10 cm. Flowers urceolate, 4–5.5 mm; tepals erect, white, pink, or dark red, unequal, becoming papery and investing capsule in fruit; outer tepal oblong-lanceolate, margins entire, apex obtuse, sometimes mucronate; inner tepal narrowly ovate to spatulate, margins entire, apex obtuse; stamens equaling perianth or exserted; outer filaments simple, inner with 2 prominent lateral teeth that exceed anther-bearing portion, glabrous; anthers yellow or purple; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 15–50 mm. Seed-coat not known.


Phenology: Flowering Apr–Jul.
Habitat: Roadsides and other disturbed areas
Elevation: 0–100 m

Distribution

V26 412-distribution-map.jpg

Introduced; Europe, Asia, n Africa

Discussion

Normally the umbel of Allium ampeloprasum has no bulbils, but there are some variants with a few flowers that produce bulbils. The species has been reported as established in New England and adjacent Canada and can be found along roadsides and in other disturbed areas. It is probably conspecific with A. porrum Linnaeus, the leek of commerce. Allium porrum can be distinguished from A. ampeloprasum based on its unique bulb morphology and chemistry from centuries of cultivation and selection.

Selected References

None.

Lower Taxa

None.

"thicker" is not a number."broad" is not a number.

... more about "Allium ampeloprasum"
purple +  and yellow +
versatile +  and dorsifixed +
cordate +  and linear +
Obtuse (?) +, Mucronate (?) +  and Narrowed (?) +
Dale W. McNeal Jr. +  and T. D. Jacobsen +
Linnaeus +
whorled +, opposite +  and alternate +
dilated +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
straight +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
channeled +
2mm;20mm +
conspicuous +
1 +  and 2 +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not evident +
roughened +  and smooth +
Wild leek +
Europe +, Asia +  and n Africa +
0–100 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
loculicidal +
membranaceous +  and leathery +
Roadsides and other disturbed areas +
paired +, paniculate +  and racemose +
white +  and light-brown +
narrowly ovate +  and spatulate +
persistent +
yellowish +  and light-brown +
crested;3-lobed +
many;several +
spreading +  and erect +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
membranous +
zygomorphic +  and actinomorphic +
Flowering Apr–Jul. +
anther-bearing +
persistent +
45cm +  and 180cm +
terete +  and fistulose +
3mm +  and 7mm +
wind-distributed +
1 +  and many +
obovoid +
Introduced +
adnate +  and free +
epipetalous +
1 +  and several +
Allium ampeloprasum +
species +
dark red;pink;dark red;pink;white +
persisting +
distinct +
petal-like +
unequal +
sepaloid +  and petaloid +
narrower +
few-flowered +, compact +  and 500-flowered +
persistent +
9 +, 8 +  and 7 +