Vulpia microstachys

Species category

Weed

Common name

small fescue, twoflower fescue, little fescue

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

Oblanceolate

Size

  • Length 5–7 mm
  • Width 0.8–1 mm
  • Thickness 0.8–1 mm

Color

Light brown

Texture

Dull

Lemma

The lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
terminates in a narrow awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
.

Palea

The basalBasal:
The base of the fruit or seed opposite the apical end.
half has a longitudinal groove. The paleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo.
is infolded in 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

There is an indentation above the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Identification notes

Fine hairs are apparent on the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
. Measurements exclude the awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Vulpia microstachys (Nutt.) Munro

 Vulpia microstachys.  Floret with an indentation above the callus.
Vulpia microstachys. Floret with an indentation above the callus.
 Vulpia microstachys.  Floret with an indentation above the callus.
Vulpia microstachys. Floret with an indentation above the callus.
 Vulpia microstachys.  Linear hilum. Photo courtesy of USDA-APHIS-PPQ.
Vulpia microstachys. Linear hilum. Photo courtesy of USDA-APHIS-PPQ.