Avena nuda

Species category

Weed

Common name

naked oat

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

Oblong

Size

  • Length: 9 mm
  • Width: 2.5 mm
  • Thickness: 2.5 mm

Color

Gray

Texture

Smooth

Lemma

Missing

Palea

Missing

Other structures

Coarse hair at apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
; embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
at base.

Identification notes

Strong longitudinal groove on side opposite the embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
. EmbryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
is located at base of caryopsis (4 mm long).

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Avena nuda L.

 Avena nuda.  Oblong caryopsis with missing lemma and palea.
Avena nuda. Oblong caryopsis with missing lemma and palea.