Bromus marginatus

Species category

Agricultural, Revegetation or Rangeland

Common name

mountain brome

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: 1.4 mm
  • Width: 0.5 mm
  • Thickness: 1.5 mm

Color

Light brown

Texture

Smooth and sparsely appressedAppressed:
Pressed close or lying flat against something.
pubescence, minutely hispid.

Lemma

Strongly laterally compressed; nerves not forming ridges.

Palea

Obscured by a compressed lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.

Other structures

RachillaRachilla:
The axis of a spikelet.
is granularGranular:
Resembling or consisting of small grains or particles.
or hispid.

Identification notes

This laterally-compressed species is similar to B. catharticus, but less thick with less conspicuous longitudinal nerves.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Bromus marginatus Nees ex Steud.

Synonyms

Bromus breviaristatus Buckley
Bromus carinatus Hook. & Arn. var. linearis Shear
Bromus carinatus Hook. & Arn. var. marginatus (Nees ex Steud.) Barkworth & Anderton
Bromus marginatus Nees ex Steud. var. breviaristatus (Buckley) Beetle
Bromus marginatus Nees ex Steud. var. latior Shear
Bromus marginatus Nees ex Steud. var. seminudus Shear
Bromus sitchensis Trin. var. marginatus (Nees ex Steud.) B. Boivin
Ceratochloa marginata Steud ex B.D. Jacks., nom. inval.
Ceratochloa marginata (Nees ex Steud.) W.A. Weber

 Bromus marginatus.  Florets with smooth and sparsely appressed pubescence. 
Bromus marginatus. Florets with smooth and sparsely appressed pubescence.