Rush skeletonweed (Chondrilla juncea)

  • Rush Skeletonweed Plant 215x150

Category A Weed

Sunflower family (Asteraceae)

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  • Multiple, up to 4 ft. tall and highly branched; contains white, milky sap

  • Lacks hair (glabrous) except lower 4-6 in. which is covered with coarse, downward-pointing, reddish-brown hairs


    • Rosette leaves resemble dandelion; 2-5 in. long, 0.5-2 in. wide and lack hair; edges (margins) are irregular with shallow lobes and are often purplish; rosette leaves usually wither at bolting

    • Stems have very few leaves; typically narrow with smooth edges; inconspicuous


      • Yellow; 0.75 in. wide; 7-15 linear petals with toothed tips; can be alone or in small slusters scatered along branches

      • Seed tipped with a white, parachute-like pappus that allows it to be spread by wind


        • Deep taproot and short creeping lateral roots


          • Grows best in well-drained soils; often infests roadsides, rangelands and waste areas; known to occur in Douglas County

          • Perennial; reproduce by seed and roots


            • Repeated hand-removal of individual plants (including roots) and frequent tillage are effective

            • Several biological control agents are available

            • Apply picloram, clopyralid or 2,4-D in the rosette to early-bolt stages


              Rush Skeletonweed Plant 215x150
              Mature Plant
              Rush Skeletonweed Flower 215x150
              Rush Skeletonweed Stem 215x150
              Rush Skeletonweed Seedling 215x150
              Rush Skeletonweed Rosette 215x150
              Basal Leaves
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              Nevada Noxious Weed Guide