• Dalmatian Toadflax Plant Mature 215x150

Category A Weed

Figwart family (Scrophulariaceae)

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Dalmatian toadflax (Linaria dalmatica)


    • Up to 4 ft. tall, lacks hair (glabrous), waxy and branched near the top


      • Alternate and dense; lance-shaped to heart-shaped, 1-2.5 in. long, blue-green color, lack hair and waxy; bases clasp the stem; edges (margins) are smooth


        • Snapdragon-like; 1.5-2 in. long; yellow with an orange-bearded throat and a long spur; clustered along upper part of stem

        • Seed capsules round (less than 0.3 in. diameter) with two chambers, each containing many seeds


          • Creeping root system


            • Grows best in dry, well-drained soils; often infests rangelands, waste areas and roadsides; known to occur in Douglas, Elko, Lincoln, Storey, Washoe and White Pine counties

            • Perennial; reproduces by seed and roots

            • May be toxic to livestock if ingested in large quantities


              • Mechanical control (mowing, burning or tillage) is NOT effective

              • Several biological control agents are available

              • Apply chlorsulfuron, imazapic or picloram, through bloom or to fall rosettes; repeated applications of 2,4-D, dicamba or glyphosate to actively growing plants¬†