Secale cereale

Species category

Agricultural

Common name

common rye, cultivated rye, rye, cereal rye, cultivated annual rye

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

Cylindrical and pointed

Size

  • Length 6–7 mm
  • Width 2–2.5 mm
  • Thickness 2–2.5 mm

Color

Brown to metallic green

Texture

Rough and scaly

Lemma

None

Palea

None

Other structures

Pointed embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
is one-third the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
length.

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).
(grain) is pointed at the embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
and usually parallel-sided from the embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
to the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. CaryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
is ridged on the embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
side and grooved on the other.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Poaceae

Valid name

Secale cereale L.

Synonyms

Secale montanum Guss., nom. inq.
Secale strictum
(C. Presl) C. Presl
Triticum cereale (L.) Salisb.

 Secale cereale.  Caryopses with a pointed embryo that's one-third of the caryopsis length. 
Secale cereale. Caryopses with a pointed embryo that's one-third of the caryopsis length.