Agrostis stolonifera

Species category

Turf

Common name

creeping bentgrass

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

Color

Yellow to golden, sometimes silvery.

Texture

Glossy

Lemma

OvateOvate:
Egg-shaped with basal end the broadest.

Palea

Mostly firm, long and loose.

Other structures

AwnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
mostly lacking. Lateral callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
hairs.

Identification notes

Back of lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
humped up above the constricted base. CallusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
thick and obtusely angled.

Comments

See: USDA Agriculture Handbook No. 219 . Seed of this species is considered noxious only as a contaminant. Check individual states for interpretations.

Noxious weed seed categories

State Noxious Weed: Delaware, Maryland, New Hampshire, New Jersey, Pennsylvania, Virginia, West Virginia 

AOSA examination list

Not included

More information

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

Nomenclature

Family

Poaceae

Valid name

Agrostis stolonifera L.

Synonyms

Agrostis alba L. var. palustris (Huds.) Pers.
Agrostis alba L. var. stolonifera (L.) Sm.
Agrostis maritima Lam.
Agrostis palustris Huds.
Agrostis stolonifera L. var. compacta Hartm. 
Agrostis stolonifera L. var. palustris (Huds.) Farw.

 Agrostis stolonifera . Lanceolate florets.
Agrostis stolonifera. Lanceolate florets.