Species: 

Lolium perenne

Common Name: 

perennial rye grass

Systems Affected (standardized): 

rangeland, riparian/aquatic

Regions(s) present (updated by AB): 

ALL

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Impacts: 

Increases vulnerability to invasions
Modification of fire regime
Modification of nutrient regime

Source? likely to be reintroduced: 

probably the first grass deliberately sown for pastures’. As a result it has been sown in many countries and has become extremely widespread both as a cultivated species for livestock grazing and for fodder (as hay or silage), and as a useful cover crop for soil stabilisation and pasture improvement, as well as an excellent grass for lawns and turf.

Info Blurb: 

Can form a dense turn which can outcompete native vegetation. Produces large quantities of seed which is easily dispersed. Deliberately sown as a forage crop, for erosion control, and for lawns and sports fields.

Native Regions in OK: 

NONE

Current and past designations: 

TX

Present in OK?

Present in Bordering States?

OK, TX, NM, CO, KS, MO, AR, LA

Has Legal Status in BS?

NONE