The Mission of the Yellowstone County Weed Department is to assist the public, private, and other government agencies to manage and control existing noxious weed infestations as well as to prevent new invasive species from infesting Yellowstone County.

VentenataVentenata dubia

Photo by Matt Lavin

Seedling

Plant

Infestation

Stem

Dry Ventenata

Ventenata Clump

Photos by Matt Lavin

Attribute	Information
Control	Herbicide control most effective when tailored to site conditions. Monitoring is crucial. Contact your local County Weed District or local applicator for more information.
Habitat	Germinates in fall, but some germination can take place in spring. It is adapted to characteristic Mediterranean climates with cool, wet winters and hot, dry summers. Ventenata can invade rangeland, pastures, winter grain and hay fields, Conservation Reserve Program lands, and sagebrush steppe habitats. Field observations suggest it can grow in areas with moderate annual precipitation ranging from 14 to 44 inches and elevations ranging from 33 to 5,900 feet.
Root	Shallow root system.
Leaf Shape	Leaves are rolled lengthways or folded.
Lifespan	Two years or longer.
Priority 2A Weed	Common in isolated areas of Montana.
Similar Looking Plants	Cheatgrass, Downy Brome, or Japanese Brome.
Important Information	Ventenata has limited use as ungulate forage but otherwise has no or little value for wildlife.