• Austrian Fieldcress Plant 215x150

Category A Weed

Mustard family (Brassicaceae)

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Austrian fieldcress (Rorippa austriaca)

    Stem

    • ¬†Up to 3 ft. tall and branched at the top

      Leaves

      • Bluish-green, 1-4 in. long and oblong to lance-shaped; edges (margins) are smooth to toothed

      • Stem leaves are alternate; leaf size decreases up the stem; bases of upper leaves have small lobes that clasp the stem

        Flower

        • Small yellow flowers (0.1 in. wide) with 4 petals; clustered at tips of branches

        • Seed pod is oval, 0.1 in. long and borne on a 0.3-0.6 in. long stalk

          Root

          • Thick, fleshy taproot with creeping roots

            Other

            • Grows best in moist, disturbed areas; often infests roadsides, waste areas, pastures and crop fields; not known to occur in Nevada

            • Perennial; reproduces by roots; forms dense patches

              Control

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

              • Repeated cultivation and improved drainage of wet areas have also been reported to be effective

              • Apply 2,4-D to actively growing plants