Achnatherum hymenoides

Species category

Revegetation or Rangeland

Common name

Indian ricegrass

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

SpatulateSpatulate:
Having a narrow base and rounded apex. Pear-shaped.
, round in cross-section

Size

  • Length: 3 mm
  • Width: 2 mm
  • Thickness: 2 mm

Color

Brown

Texture

Smooth

Lemma

Brown, hard, with yellow margins

Palea

Brown, hard, with yellow margins

Other structures

Long, silky pubescence, which is mostly removed by milling.

Identification notes

The body of the floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
is round in cross section with a neck at the basalBasal:
The base of the fruit or seed opposite the apical end.
end terminating in an oblique callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Poaceae

Valid name

Achnatherum hymenoides (Roem. & Schult.) Barkworth

Synonyms

Eriocoma cuspidata Nutt.
Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper
Stipa hymenoides Roem. & Schult.

 Achnatherum hymenoides.  Silky pubescence, bottom right.
Achnatherum hymenoides. Silky pubescence, bottom right.