Species Information

• jubata grass
• Cortaderia jubata (Lem.) Stapf
• USDA Symbol: COJU2
• Oregon Noxious Weed Designation: B
• Pictures

Identification: Perennial grass; grows 6-23 ft. Long bright green leaves arise from tufted base or tussock. Plumes violet when immature, turning pinkish to cream colored when mature. Easily confused with pamaps grass, which has a taller tussock so the plumes are not exerted as high above the leaves as with jubata grass and generally has a lighter purple or all cream tinge to the plumes.

Impacts: Mature plants are very competitive. Large infestations threaten central and southern Oregon coastal ecosystems as well as hamper young tree regeneration on logged coastal forest land.

Biological Controls: No approved biological control agent is available.

Oregon Maps of Jubata Grass

Links:

USDA Plants Database information on jubata grass

GRIN Database information on jubata grass

Oregon Department of Agriculture information on jubata grass