Elymus gmelinii

Species category

Weed

Common name

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

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

Size

  • Length 9–12 mm
  • Width 1.8–2 mm
  • Thickness 0.7–0.8 mm 

Color

Brown

Texture

Smooth, scabrousScabrous:
Rough to the touch, covered with minute points of very short, stiff hairs.
on the awnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).

Lemma

Lanceolate with an acute apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
; hump near the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Palea

Keels are ciliate. PaleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo.
is same length as the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
.

Other structures

LemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
awn is curved and 25-40 mm long.

Identification notes

RachillaRachilla:
The axis of a spikelet.
is pubescentPubescent:
Having hairs.
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Elymus gmelinii (Ledeb.) Tzvel.

Synonyms

Roegneria turczaninovii (Drobow) Nevski

 Elymus gmelinii.  Florets with a long, curved lemma awn.
Elymus gmelinii. Florets with a long, curved lemma awn.