Single Record

Participant Info

Species
Bromus japonicus [Bromus arvensis var. japonicus] [Bromus patulus]
Family
Poaceae
CommonName
Japanese brome, Japanese chess
Presence
yes
Status
exotic
EarliestDate
1986
LatestDate
2004
Ecosystem
basin, foothill, ruderal, sanddunes
Geobotanical
SSanjuans, UBasin, LBasin
Counties
Alamosa, Conejos, Costilla
Passes
WildlifePreserves
Great Sand Dunes
Other Localities
Comments
NEED IN SITU PHOTOS. Japanese brome, an Eurasian exotic that now has spread to every state of the USA, has been vouchered from only four locations in the Watershed: Old San Acacio (Costilla Co, 1986), the Great Sand Dunes NPP (Alamosa Co, 1988), a few miles east of the town of Alamosa (1999), and a few miles south of Fox Creek road (Conejos Co, 2004). The Valley floor may be at the limit of the elevation range of Bromus japonicus. The species likes ruderal sites such as road sides and railroad embankments. It follows the Rio Grande drainage through New Mexio and on down Texas about half way to the Gulf of Mexico.