Triticum aestivum

Species category

Agricultural

Common name

common wheat

Diagnostic characters

Planting unit

CaryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).

Shape

Thickly ovateOvate:
Egg-shaped with basal end the broadest.

Size

  • Length 6–8 mm 
  • Width 3–4 mm
  • Thickness 3–4 mm 

Color

Yellow-brown for soft wheat, brown for hard

Texture

Smooth with tuft of hair at apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.

Lemma

Mostly absent

Palea

Mostly absent

Other structures

EmbryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
has rounded apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
, deep groove on ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side.

Identification notes

CaryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
tends to be broadly obovateObovate:
Inverted egg shaped with apical end the broadest.
and the embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
has a rounded apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. A deep groove is found on the ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side. The soft wheats are lighter and more opaque than the hard wheats.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Poaceae

Valid name

Triticum aestivum L.

Synonyms

Triticum aestivum subsp. aestivum L.
Triticum hybernum L.
Triticum macha Dekap. & Menab.
Triticum sativum Lam.
Triticum sphaerococcum Percival
Triticum vulgare Vill.

 Triticum aestivum  subsp.  aestivum.  Caryopsis with an embryo with a rounded apex and deep groove on ventral side. 
Triticum aestivum subsp. aestivum. Caryopsis with an embryo with a rounded apex and deep groove on ventral side.