Hordeum vulgare

Species category

Agricultural

Common name

common barley

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

EllipticElliptic:
Outline of an ellipse; greatest width midway sloping to an equally pointed apex and base.

Size

  • Length 8.5–11 mm
  • Width 3.5–4 mm
  • Thickness 3–4 mm

Color

Light brown

Texture

GlabrousGlabrous:
Lacking hairs or pubescence.
and wrinkled where attached to caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
.

Lemma

Widest in middle with straight line slope to ends; wrinkled where attached to caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
. AwnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
often broken off.

Palea

Enrolled margins are convex with a deep groove in the center.

Other structures

AwnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
mostly removed by conditioning; rudimentary rachillaRachilla:
The axis of a spikelet.
.

Identification notes

Seldom found as a free caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
, except in seldom-used varieties called "hulless barley". The shape is unique by having straight sloping sides from the wide middle to the base and apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. AwnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
broken off.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Poaceae

Valid name

Hordeum vulgare L.

Synonyms

Hordeum aegiceras Nees ex Royle
Hordeum distichon L.
Hordeum hexastichum L., orth. var.
Hordeum hexastichon L.
Hordeum irregulare Aberg & Wiebe
Hordeum sativum Pers.
Hordeum vulgare L. ssp. hexastichon (L.) Bonnier & Layens
Hordeum vulgare L. var. trifurcatum (Schltdl.) Alef.

 Hordeum vulgare.  Florets that are glabrous and wrinkled where they are attached to the caryopsis. 
Hordeum vulgare. Florets that are glabrous and wrinkled where they are attached to the caryopsis.