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Wisflora - Vascular Plant Species

University of  Wisconsin - Madison 

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Family: Lemnaceae
  Genus: Lemna

    Lemna aequinoctialis Welw.*+

        lesser duckweed, three-nerved duckweed
             Lemna angolensis Welw. ex Hegelm.
             Lemna paucicostata Hegelm.
    Lemna minor L.*+

        common duckweed, lesser duckweed, small duckweed
             Lemna cyclostasa Elliott ex Schleid.
    Lemna obscura (Austin) Daubs*+

        little duckweed, purple duckweed
             Lemna minor L. var. obscura Austin
    Lemna perpusilla Torr.+

        least duckweed, minute duckweed
             Lemna perpusilla Torr. var. trinervis Austin
             Lemna trinervis (Austin) Small
    Lemna trisulca L.*+

        forked duckweed, star duckweed
    Lemna turionifera Landolt*+

        perennial duckweed, Turion duckweed
  Genus: Spirodela

    Spirodela polyrrhiza (L.) Schleid.*+
        giant duckweed, greater duckweed
             Lemna polyrrhiza L.
             Spirodela polyrrhiza (L.) Schleid. var. masonii Daubs

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