Yellow Toadflax
(Linaira vularis)

 

Photo from Weeds of the West, revised ed.

Toxic	Rosetta	Stem
Leaf	Bloom	Seed

Toxcity: Toxic. Suspected to be toxic to some animals if large quantities are ingested.

Growth Habit: Perennial, often over 3 ft. tall.

Leaves: Long and narrow, numerous, pale green, smooth and pointed, attached directly to the stem.

Stem: Smooth, erect and sometimes branched.

Flower: Snapdragon type, 1 to 1 ½ inches long with spur, bright yellow with deep orange center.

Roots: Woody, vigorous, well branched with many laterals.

Seeds: Round, ½ inch in diameter, dark brown to black with a papery circular wing.

Reproduction: Reproduces by seed and underground rootstocks.

Habitat: Yellow Toadflax is an aggressive invader of rangelands, displacing desirable grasses. It can also be found along roadsides, waste areas, and cultivated fields.

Biological Control:

Herbicide: Tordon

 

Video Supplied By Ravalli County Weed District