Giant salvinia spreads beneath the cypress breaks at Moss Slough on Caddo Lake in Louisiana, U.S., near the Texas border, on April 3, 2008. As Caddo...
Sign warns boaters of giant salvinia presence at Potters Point on Caddo Lake in Texas, U.S., on April 3, 2008. As Caddo Lake's water temperature...
Ken Shaw, head of the Cypress Valley Navigation District, which oversees the boat lanes on Caddo Lake, surveys the buildup of giant salvinia and...
Ken Shaw, head of the Cypress Valley Navigation District, which oversees the boat lanes on Caddo Lake, inspects a net containing giant salvinia...
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
close-up of common salvinia or water spangles - salvinia stock pictures, royalty-free photos & images
salvinia minima - also called common salvinia or water spangles and a fallen leaf for size comparison - salvinia stock pictures, royalty-free photos & images
salvinia minima, also called common salvinia or water spangles on fingertip for size perspective - salvinia stock pictures, royalty-free photos & images
salvinia minima - also called common salvinia or water spangles in florida, usa - salvinia stock pictures, royalty-free photos & images
salvinia minima - also called common salvinia or water spangles in florida, usa - salvinia stock pictures, royalty-free photos & images
Pillwort, Pilularia globulifera , Marsilea quadrifolia , hart's-tongue, Asplenium scolopendrium L. Und scolopendrium vulgare , floating fern,...
An outbreak of Salvinia weed chokes the Hawkesbury River near Windsor, 18 June 2004. SMH Picture by ROBERT PEARCE
An outbreak of Salvinia weed chokes the Hawkesbury River near Windsor, 18 June 2004. SMH Picture by ROBERT PEARCE
Banner against the leader of Italy's right-wing Lega Nord party, Matteo Salvinia during a counter-demonstration organised by left-wing movements and...
salvinia auriculata (eared watermoss, african payal, butterfly fern) - salvinia stock pictures, royalty-free photos & images
humboldt cormorant (nannopterum brasilianum) swimming on a lake full of floating ferns (salvinia), reserva ecologica costanera sur, buenos aires, argentina, south america - salvinia stock pictures, royalty-free photos & images
water plants in the pond (salvinia auriculata) - salvinia stock pictures, royalty-free photos & images
water plants in the pond (salvinia auriculata) - salvinia stock pictures, royalty-free photos & images
old engraved illustration of floating fern, floating watermoss, floating moss, or commercially, water butterfly wings (salvinia natans) - salvinia stock pictures, royalty-free photos & images
old engraved illustration of floating fern, floating watermoss, floating moss, or commercially, water butterfly wings (salvinia natans) - salvinia stock pictures, royalty-free photos & images
old engraved illustration of floating fern, floating watermoss, floating moss, or commercially, water butterfly wings (salvinia natans) - salvinia stock pictures, royalty-free photos & images
old engraved illustration of floating fern, floating watermoss, floating moss, or commercially, water butterfly wings (salvinia natans) - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
plastic bottles swims on floating watermoss (salvinia natans) in the coastal area in the delta danube river. plastic pollution. ermakov island, danube biosphere reserve in danube delta, ukraine - salvinia stock pictures, royalty-free photos & images
an airboat speeds through floating salvinia (fern) in the atchafalaya river basin swamp in southern louisiana under an overcast sky - salvinia stock pictures, royalty-free photos & images
The boom gate across the Georges River at Liverpool about half mile south of Liverpool Bridge.Boom hold back the weed.The CSIRO has imported three...
Weed" - The noxious water weed salvinia sweeps unchecked down theGeorges River today. This picture was taken from the Alfords Point Bridge. April 6,...
Weed" - The noxious water weed salvinia sweeps unchecked down theGeorges River today. This picture was taken from the Alfords Point Bridge. April 6,...