Weed
quackgrass
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
Brown
Smooth and glabrousGlabrous:
Lacking hairs or pubescence.
Often awned; hump just above callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.
Longitudinal ridge up the center; coarse, spaced teeth on the margins.
Long-pointed glumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
longer than the basal floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.; rachillaRachilla:
The axis of a spikelet.
sinus is U-shaped.
Look for strongly spaced paleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo.
margin teeth, a ridge up the center of the paleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo., a hump at the base of the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
, and a parallel-sided rachillaRachilla:
The axis of a spikelet. that terminates in a U-shaped sinus. GlumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it. are pointed and have lumps where they join at the base.
State Noxious Weed: Alaska, Alabama, Arizona, California, Colorado, Connecticut, D.C., Delaware, Florida, Hawaii, Idaho, Illinois, Iowa, Kentucky, Massachusetts, Maryland, Maine, Minnesota, Missouri, Mississippi, Montana, North Carolina, Nebraska, New Hampshire, New Jersey, New Mexico, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia, Wyoming
Federal: This species is actionable only when found in field or vegetable seed for planting; toleranceTolerance:
The amount by which a second test may differ from a first test without being attributed to an actual difference in seed quality. Tolerances are usually based on normal random variation, or sampling error.
applies, see (7 CFR 361.6(a)(2)).
Learn more on ITP's Federal Noxious Weed Disseminules tool, listed under Elytrigia repens.
Included
For more information, see ISMA fact sheet.
Poaceae
Elymus repens (L.) Gould
Agropyron repens (L.) P. Beauv.
Agropyron repens (L.) P. Beauv. var. subulatum (Schreb.) Roem. & Schult.
Elytrigia repens (L.) Desv. ex Nevski
Elytrigia repens (L.) Desv. ex Nevski var. vaillantiana (Wulfen & Schreb.) Prokudin
Elytrigia vaillantiana (Wulfen & Schreb.) Beetle T
riticum repens L.
Triticum vaillantianum Wulfen & Schreb.
