Cenchrus caudatus

Species category

Weed

Common name

bedding grass, African feathergrass,  waterside-reed, wild Napier grass

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

EllipticElliptic:
Outline of an ellipse; greatest width midway sloping to an equally pointed apex and base.

Size

  • Length: 4–5 mm
  • Width: 1–1.2 mm
  • Thickness: 1–1.2 mm

Color

Light brown

Texture

Smooth with many filaments attached to the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Lemma

Awned

Palea

Smooth and deep longitudinal groove.

Other structures

Papery glumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
are sometimes visible.

Identification notes

The many filaments attached to the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
is the dominant feature.

Noxious weed seed categories

State Noxious Weed: Arizona, North Carolina
Federal (see, Pennisetum macrourum)

Learn more on ITP's Federal Noxious Weed Disseminules tool.

AOSA examination list

Not included

More information

For more information, see ISMA fact sheet, Cenchrus spp.

Nomenclature

Family

Poaceae

Valid name

Cenchrus caudatus (Schrad.) Kuntze

Synonyms

Cenchrus macrourus (Trin.) Morrone
Pennisetum angolense Rendle
Pennisetum giganteum A. Rich.
Pennisetum macrourum Trin.
Pennisetum natalense Stapf
Pennisetum quartinianum A. Rich.

 Cenchrus caudatus.  Florets with many filaments attached to the callus. 
Cenchrus caudatus. Florets with many filaments attached to the callus. 
 Cenchrus caudatus.  Florets with many filaments attached to the callus. Photo by Julia Scher, USDA-APHIS-PPQ.
Cenchrus caudatus. Florets with many filaments attached to the callus. Photo by Julia Scher, USDA-APHIS-PPQ.
 Cenchrus caudatus.  Florets with many filaments attached to the callus. Photo by Julia Scher, USDA-APHIS-PPQ.
Cenchrus caudatus. Florets with many filaments attached to the callus. Photo by Julia Scher, USDA-APHIS-PPQ.
 Cenchrus caudatus.  Caryopses. Photo by Julia Scher, USDA-APHIS-PPQ.
Cenchrus caudatus. Caryopses. Photo by Julia Scher, USDA-APHIS-PPQ.
 Cenchrus caudatus.  Florets with many filaments attached to the callus.
Cenchrus caudatus. Florets with many filaments attached to the callus.