Bromus hordeaceus

Species category

Revegetation or Rangeland

Common name

soft brome, soft chess

Diagnostic characters

Planting unit

FloretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.

Shape

Lanceolate

Size

  • Length: 9 mm
  • Width: 2 mm
  • Thickness: 2 mm

Color

Brown

Texture

Hair at upper portion of the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
; wrinkled.

Lemma

Slightly enrolled and adheres to the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
.

Palea

Long margin teeth; adheres to the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
.

Other structures

AwnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
at the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
of the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
; rachillaRachilla:
The axis of a spikelet.
wider at the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
than at the base.

Identification notes

The lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
and paleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo.
appear glued to the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
, producing a wrinkled effect on their surfaces. The brown color of the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
is visible through the outer coverings.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Poaceae

Valid name

Bromus hordeaceus L.

 Bromus hordeaceus.  Wrinkled florets with hair at the upper portion of the lemma.
Bromus hordeaceus. Wrinkled florets with hair at the upper portion of the lemma.