Leymus angustus

Species category

Agricultural, Revegetation or Rangeland, Weed

Common name

Altai wildrye

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 11–13 mm 
  • Width 1.8–2 mm 
  • Thickness 1.5–1.8 mm 

Color

Light brown 

Texture

Smooth with small hairs

Lemma

Small hump above callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
; short awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
.

Palea

Fine hairs on margin lines

Other structures

RachillaRachilla:
The axis of a spikelet.
has V-sinus and appressedAppressed:
Pressed close or lying flat against something.
hairs.

Identification notes

Hairs on upper margin of callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Leymus angustus (Trin.) Pilg.

Synonyms

Aneurolepidium angustum (Trin.) Nevski
Elymus angustus Trin.

 Leymus angustus.  Florets with hairs on the upper margin of the callus. 
Leymus angustus. Florets with hairs on the upper margin of the callus.