Turf
velvet bentgrass, agróstide canina, agróstide de perro
FloretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
Lanceolate
Yellowish-brown floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
and spikeletSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.
. Brown caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
.
Smooth
Dull, whitish, and transparent surrounding 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.
.
Reduced to minute transparent scales
GeniculateGeniculate:
Bent at a sharp angle.
and twisted awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
from middle of lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
LemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
markedly longer than the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
. Fine nerves evident at the top and obscure or lacking below. Short bristles from the lateral sides of the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.
See: USDA Agriculture Handbook No. 219 Seed of this species is considered noxious only as a contaminant. Check individual states for interpretations.
State Noxious Weed: Delaware, Maryland, New Hampshire, New Jersey, Pennsylvania, Virginia, West Virginia

Not included
For more information, see ISMA fact sheet, Agrostis spp.
Poaceae
Agrostis canina L.
Agrostis canina L. var. varians (Thuill.) Ducomm.