Linum usitatissimum

Species category

Agricultural

Common name

common flax

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

ObovateObovate:
Inverted egg shaped with apical end the broadest.
and compressed

Size

  • Length: 4–4.5 mm
  • Width: 2–2.2 mm
  • Thickness: 0.5–1 mm

Color

Brown

Texture

Smooth

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is at indentation just lateral to the seed base.

Identification notes

Seed is long and smooth. The lateral hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
indentation gives the shape a paisley look.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Linaceae

Valid name

Linum usitatissimum L.

Synonyms

Linum humile Mill.
Linum usitatissimum L. var. humile (Mill.) Pers.

 Linum usitatissimum . Hilum at indentation just lateral to the seed base.
Linum usitatissimum. Hilum at indentation just lateral to the seed base.