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   Salvinia minima aquatic plant, fern
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    Salvinia molesta
    African payal , African pyle, aquarium watermoss (English-United States), fougère d’eau (French-Burkina Faso), giant salvinia (English-United States), giant salvinia (English), kariba weed (English), koi kandy, salvinia (English), water fern (English), water spangles (English)

    Foliage (Photo: USDA APHIS - Oxford, North Carolina Archives, www.forestryimages.org) - Click for full size Giant salvinia forms mats up to 2 feet thick, gobbles up oxygen and blocks sunlight needed by other water dwellers (Photo: Scott Bauer, USDA ARS, www.forestryimages.org) - Click for full size Primary form of giant salvinia (Photo: Mic H. Julien, Commonwealth Scientific and Industrial Research Organization, www.forestryimages.org) - Click for full size Secondary form of giant salvinia (Photo: Mic H. Julien, Commonwealth Scientific and Industrial Research Organization, www.forestryimages.org) - Click for full size Tertiary form of giant salvinia (Photo: Mic H. Julien, Commonwealth Scientific and Industrial Research Organization, www.forestryimages.org) - Click for full size covering a farm pond restricts commercial and recreational use and degrades aesthetics (Photo: Ted D. Center, USDA ARS, www.forestryimages.org) - Click for full size The hairs form an Close up of giant salvinia plants (Photo: Scott Robinson, Georgia Department of Natural Resources, www.forestryimages.org) - Click for full size Closeup with a quarter for size reference (Photo: Scott Robinson, Georgia Department of Natural Resources, www.forestryimages.org) - Click for full size

    Salvinia minima is the smaller of the two species and is readily distinguished from S. molesta by the morphology of its leaf hairs. In S. minima the hairs are split four ways near the tip. In S. molesta the hairs are also split, but they come together at the tip forming an egg- beater type structure. Typically, mature leaves of S. molesta are quarter to half-dollar sized, about twice the size of S. minima (McKinney and Durocher, Undated).
ISSG Landcare Research NBII IUCN University of Auckland The Global Invasive Species Database is managed by the Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission. It was developed as part of the global initiative on invasive species led by the Global Invasive Species Programme (GISP) and is supported through partnerships with the National Biological Information Infrastructure, Manaaki Whenua-Landcare Research and the University of Auckland. Conditions of use.