Alturas Field Office

Noxious Weeds


Dalmatian Toadflax   (Linaria dalmatica)
Figwort Family (Scrophulariaceae)

Dalmation Toadflax

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Photo courtesy of the University of Idaho 

Description:  Stout perennial to 4 feet. Leaves blue-green and waxy-like, heart shaped, clasping stem, less than 2 inches long, alternately arranged and crowded on one stem. Flowers yellow, two lipped, with an orange, hairy center. Flower has a long spur, resembling a snapdragon flower. Reproduces by seed and creeping root system.

Habitat:  Native to Mediterranean. Found along roadsides and on rangelands. Aggressively invades native plant communities. Non-palatable to most herbivores. Difficult to control.

Distribution: Dalamatian toadflax is found throughout northeastern California at sites consisting of infestations of 5 acres or less: Susanville area (Lassen County), Long Bell and Lassen Creek (Siskiyou County), Red Rock Road and Mount Shasta City (Siskiyou County), Whiskeytown Lake (Shasta County), Chester Airport (Plumas County), and northeast of Loyalton (Sierra County). It was used as an ornamental in the early 1900's and can still be found at many old sawmill sites.

Flowering Period:  July to August



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