Plantae > Tracheophyta > Liliopsida > Poales > Poaceae > Elymus > Elymus repens

Elymus repens (quackgrass; creeping quackgrass)

Synonyms:

Wikipedia Abstract

Elymus repens, commonly known as couch grass, is a very common perennial species of grass native to most of Europe, Asia, the Arctic biome, and northwest Africa. It has been brought into other mild northern climates for forage or erosion control, but is often considered a weed. Other names include common couch, twitch, quick grass, quitch grass (also just quitch), dog grass, quackgrass, scutch grass, and witchgrass.
View Wikipedia Record: Elymus repens

Infraspecies

Elymus repens arenosa
Elymus repens arenosus
Elymus repens atlantis
Elymus repens calcareus
Elymus repens elongatiformis
Elymus repens repens

Attributes

Bloom Period [1]  Mid Spring
Drought Tolerance [1]  Low
Fire Tolerance [1]  High
Frost Free Days [1]  90 days
Fruit/Seed Abundance [1]  Low
Fruit/Seed Begin [1]  Spring
Fruit/Seed End [1]  Summer
Growth Form [1]  Rhizomatous
Growth Period [1]  Spring, Summer
Growth Rate [1]  Rapid
Leaf Type [1]  Deciduous
Lifespan [2]  Perennial
Propagation [1]  Seed, Sprig
Regrowth Rate [1]  Moderate
Root Depth [1]  14 inches (36 cm)
Seed Spread Rate [1]  Moderate
Seed Vigor [1]  Medium
Seeds Per [1]  110000 / lb (242508 / kg)
Shape/Orientation [1]  Erect
Structure [4]  Grass
Vegetative Spread Rate [1]  Rapid
Flower Color [1]  Yellow
Foliage Color [1]  Green
Fruit Color [1]  Brown
Height [2]  4.1 feet (1.25 m)
Hardiness Zone Minimum [1]  USDA Zone: 2 Low Temperature: -50 F° (-45.6 C°) → -40 F° (-40 C°)
Light Preference [3]  Mostly Sunny
Soil Acidity [3]  Neutral
Soil Fertility [3]  Rich
Soil Moisture [3]  Moist
Water Use [1]  Moderate
Screening - Summer [1]  Moderate
Screening - Winter [1]  Porous

Protected Areas

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Ecosystems

Predators

Providers

Parasite of 
Claviceps purpurea (Ergot)[6]

Consumers

Parasitized by 
Blumeria graminis[6]
Tranzscheliella hypodytes[6]

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1USDA Plants Database, U. S. Department of Agriculture
♦ 2PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
♦ 3ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ 4Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 5Biological Records Centre Database of Insects and their Food Plants
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 7Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
♦ 8New Zealand Institute for Plant & Food Research Plant-SyNZ™ database
♦ 9Ecology of Commanster
♦ 10Predicting seasonal diet in the yellow-bellied marmot: success and failure for the linear programming model, G.P. Edwards, Oecologia (1997) 112:320-330
♦ 11Microtus pinetorum, Michael J. Smolen, Mammalian Species No. 147, pp. 1-7 (1981)
♦ 12Butterflies of Canada, Canadian Biodiversity Information Facility
♦ 13Individual variation in the ability of Columbian ground squirrels to select an optimal diet, MARK E. RITCHIE, Evolutionary Ecology, 1988, 2, 232-252
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0