BugwoodWiki Article

quackgrass
Elymus repens (L.) Gould

Overview

Quackgrass is a perennial, cool-season, rhizomatous grass. The stems are green to whitish, erect to decumbent and can grow to 3 ft (0.9 m) tall. The leaves are 6-15.7 in. (15-40 cm) long and usually have a pair of prominent auricles at the base. Flowering occurs in May to September. The flower spikes are 3.9-11.8 in. (10-30 cm) long and have 3-8 florets per spikelet. Quackgrass is native to Europe and occurs in pastures, gardens, roadsides, and other disturbed open areas.

Resources

Selected Images


1550079
1550079

quackgrass
Elymus repens
Plant(s)
Ohio State Weed Lab Archive
1196132
1196132

quackgrass
Elymus repens
Plant(s)
Elizabeth Bella
1459496
1459496

quackgrass
Elymus repens
Plant(s)
Steve Dewey
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1357001

quackgrass
Elymus repens
Fruit(s)
Dr. Lynn Clark and Anna Gardner
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1357005

quackgrass
Elymus repens
Fruit(s)
Dr. Lynn Clark and Anna Gardner
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1550073

quackgrass
Elymus repens
Feature(s)
Ohio State Weed Lab Archive
1459495
1459495

quackgrass
Elymus repens
Feature(s)
Steve Dewey
1459493
1459493

quackgrass
Elymus repens
Plant(s)
Steve Dewey
1459494
1459494

quackgrass
Elymus repens
Plant(s)
Steve Dewey
1459498
1459498

quackgrass
Elymus repens
Root(s)
Steve Dewey
1459497
1459497

quackgrass
Elymus repens
Infestation
Steve Dewey
1195006
1195006

quackgrass
Elymus repens
Floret(s)
Julia Scher
5306052
5306052

quackgrass
Elymus repens
Plant(s)
USDA PLANTS Database
5306053
5306053

quackgrass
Elymus repens
Plant(s)
USDA PLANTS Database
5307040
5307040

quackgrass
Elymus repens
Plant(s)
USDA PLANTS Database

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.

State Regulated List
Legend
   No Data for this state
   Troublesome or Common weed in one or more crops

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae
Genus: Elymus

Other System Links

Plants: ELRE4
Bayer: AGRRE
GRIN: 102069
ITIS: 512839

Synonyms and Other Names

Other Common Names:
couch grass, dog grass, quickgrass, scutch, quitch, twitch

Related Scientific Names:

Agropyron repens (L.) Gould(Synonym)
Elytrigia repens (L.) Gould(Synonym)
Elytrigia vaillantiana (L.) Gould(Synonym)
Triticum repens (L.) Gould(Synonym)
Triticum vaillantianum (L.) Gould(Synonym)

Categories

Category: Grass or Grasslike