Camelthorn (Alhagi maurorum)

Category A Weed

Pea family (Fabaceae)

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  • Highly branched with lengthwise ridges, 1.5-4 ft. tall and lacks hair (glabrous); spines (0.5 to 1.5 in. long) with yellow tips arise from leaf axils


    • Alternate, simple, narrow to oblong and 0.25-0.75 in. long; hairs on lower surface only


      • Pea-like; 0.3-0.4 in. long with pink to purple petals; 2-8 flowers occur alternately along short, spine-tipped branches

      • Seed pods are reddish-brown, 0.5-1.25 in. long, often curved, tipped with a small spine and contain 5-8 seeds; pods are deeply indented between seeds


        • Woody, deep, spreading root system; roots often associate with nitrogen-fixing bacteria


          • Grows best in areas where it can access additional water during the growing season; often found in field borders, roadsides and along waterways; known to occur in Clark, Eureka and Lander counties

          • Perennial; reproduces mostly by roots but sometimes seed


            • Hand removal of individual plants (including roots) can limit spread of small infestations

            • Grazing, mechanical removal and burning are NOT effective
            • Apply 2,4-D, dicamba, glyphosate or picloram to actively growing plants


              Camelthorn Plant 215x150
              Mature plant
              Camelthorn Spine 215x150
              Camelthorn Flower
              Camelthorn Leaves and stem
              Leaves and stem
              Camelthorn Seed Pod
              Seed Pod
              Nevada Noxious Weed Field Guide
              Nevada Noxious Weed Guide