Glyceria striata

Species category

Weed

Common name

fowl mannagrass

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.

Size

  • Length 1.7–2 mm
  • Width 0.7–0.8 mm
  • Thickness 0.6–0.7 mm

Color

Light brown and purple

Texture

CaryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
is smooth.

Lemma

Five strong longitudinal ribs which may be serrated.

Palea

Smooth with two marginal ribs

Other structures

LemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
is constricted near the base.

Identification notes

RachillaRachilla:
The axis of a spikelet.
and callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
are small and straight.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Glyceria striata (Lam.) Hitchc.

Synonyms

Glyceria elata (Nash ex Rydb.) M.E. Jones
Glyceria nervata (Willd.) Trin.
Glyceria striata (Lam.) Hitchc. var. stricta (Scribn.) Fernald
Glyceria striata (Lam.) Hitchc. ssp. stricta (Scribn.) Hultén
Panicularia nervata (Willd.) Kuntze
Panicularia striata (Lam.) Hitchc.

 Glyceria striata.  Florets with a smooth caryopsis and the lemma is constricted near the base.
Glyceria striata. Florets with a smooth caryopsis and the lemma is constricted near the base.