Allium fistulosum

Species category

Vegetable

Common name

Welsh onion

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

Wedge

Size

  • Length: 2.5–3 mm
  • Width: 1.8–2 mm
  • Thickness: 1.3–1.5 mm

Color

Black

Texture

Minute stipplesStipples:
Numerous small dots or specks.

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
enfolded at the base.

Identification notes

One flat surface. Onion seeds of different species are difficult to separate.

Noxious weed seed categories

State Noxious Weed: Alabama, Arkansas, Delaware, Georgia, Kansas, Kentucky, Louisiana, Massachusetts, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia

AOSA examination list

Included

Nomenclature

Family

Liliaceae

Valid name

Allium fistulosum L.

 Allium fistulosum . Wedge-shaped seed with one flat surface.
Allium fistulosum. Wedge-shaped seed with one flat surface.
 Allium fistulosum.  Wedge-shaped seed with one flat surface.
Allium fistulosum. Wedge-shaped seed with one flat surface.