Department Header For Noxious Weed Division
Yellowstone County, Montana
Noxious Weed
Weed Information Contact Department

Ventenata
(Ventenata dubia)

 

Ventenata Seedling
Seedling

Ventenata Plant
Plant

Ventenata Infestation
Infestation

Ventenata Stem
Stem

Ventenata Dry
Dry Ventenata

Ventenata Clump
Ventenata Clump

Photos by Matt Lavin

 

Type

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.

Information By Montana State University & United States Department of Agriculture