Wolffia arrhiza (L.) Horkel ex Wimm. [ Lemna arrhiza L.]
      
no HD illustration available (m3)
6 1075282 Wolffia arrhiza (L.) Horkel ex Wimm. [125 591835 Lemna arrhiza L.] Lemnaceae
J. Sturm, J.W. Sturm, Deutschl. Fl., vol. 11 (Heft 41-44): t. 6] (1821)