Yellow Toadflax

Linaria vulgaris


Yellow Toadflax - A perennial growing 8-31 inches tall from creeping roots. Forms colonies.

Leaves: Many narrow, linear leaves up to 4 inches in length, alternating along the stem.

Flowers: Flowers bloom from June-September. Many flowers crowd the top 2-9 inches of the plant. Flowers are yellow, hairy, and have orange "throats." Resembles snapdragons.

Habitat: Grows in a variety of habitats, including: roadsides, edges of fields, rangelands, meadows, cultivated fields, and waste areas.

Weed Classification: C

Why is it a Noxious Weed?

It can easily invade range and farmlands outcompeting desirable crops/forage. Livestock will rarely eat the plant.

Yellow Toadflax can infest cultivated land easily, and spread rapidly. Seen in croplands in various areas of the county, if you need any assistance identifying or controlling this plant, please let us know!

Control Recommendations:

WA State Noxious Weed Control Board

PNW Pest Management Handbook

UC Davis Weed Report