Eragrostis cilianensis

Species category

Weed

Common name

stinkgrass

Diagnostic characters

Planting unit

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

Shape

OvalOval:
Broadly elliptic.

Size

  • Length 1 mm
  • Width 0.5 mm
  • Thickness 0.5 mm

Color

Reddish-brown

Texture

Fine, rectangular reticulum

Lemma

None

Palea

None

Other structures

Basal embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
axis at an oblique angle to the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
axis

Identification notes

CaryopsesCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
are small and moderately translucent. The embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
axis is not parallel to the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
axis.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Poaceae

Valid name

Eragrostis cilianensis (All.) Vign. ex Janchen

Synonyms

Eragrostis major Host
Eragrostis megastachya (Koeler) Link
Poa cilianensis All.

 Eragrostis cilianensis.  Caryopses are moderately translucent.
Eragrostis cilianensis. Caryopses are moderately translucent.
 Eragrostis cilianensis.  Lateral view of fruit. The caryopses naturally rest on their sides since they are laterally compressed. Photo courtesy of USDA-APHIS-PPQ.
Eragrostis cilianensis. Lateral view of fruit. The caryopses naturally rest on their sides since they are laterally compressed. Photo courtesy of USDA-APHIS-PPQ.
 Eragrostis cilianensis . Lateral view of spikelet. Remnant of the top of a spikelet. Note long cilia on palea veins. Photo courtesy of USDA-APHIS-PPQ.
Eragrostis cilianensis. Lateral view of spikelet. Remnant of the top of a spikelet. Note long cilia on palea veins. Photo courtesy of USDA-APHIS-PPQ.