Participant Info

Species

Lolium perenne

Family

Poaceae

CommonName

perennial ryegrass, English ryegrass

Presence

yes

Status

exotic

EarliestDate

?

LatestDate

?

Ecosystem

basin, foothill, ruderal, urban

Geobotanical

SSanjuans, UBasin

Counties

Alamosa, Rio Grande, Saguache

Passes

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. There are no Watershed vouchers for perennial ryegrass, but Shaw (2008) and BONAP (2025) show Rio Grande, Alamosa, and Saguache counties. Lolium perenne is an exotic, introduced as a lawn and pasture grass, and often escaping. There are many recorded escapes, from all USA states. In the Rio Grande drainage, such occurrences continue on down through New Mexico and, spottily, all the way through Texas to the Gulf of Mexico.

Annotation