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Allium ampeloprasum L.  
Family: Amaryllidaceae
Broad-Leaf Wild Leek, more...broadleaf wild leek
Allium ampeloprasum image
  • FNA
  • Gleason & Cronquist
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Dale W. McNeal Jr. & T. D. Jacobsen in Flora of North America (vol. 26)
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. Flowering Apr--Jul. Roadsides and other disturbed areas; 0--100 m; introduced; Europe; Asia; n Africa. 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.

Vascular plants of NE US and adjacent Canada
Bulbs round-ovoid; stem stout, 5-10 dm, bearing a few lvs in the lower half; lvs linear, 5-20 mm wide, sharply keeled; umbel globose, many-fld; bulblets none; pedicels 2-3 cm; tep lavender to red-purple, lance-ovate, acute, 5 mm; inner stamens with broad flat filaments, terminating in 2 hair-like appendages surpassing the anther; 2n=16-80. Native of Europe, established as a weed at scattered stations in our range.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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