River plants serve an important ecologic function . Many of them offer shade and food for birds , fish and other wildlife . They also serve to oxygenate the water supply and can stabilise the sediments in the water to keep the water exculpated . These plants prefer the wet and can tolerate specter . River plants have adapted to live on or in the water .

Fragrant White Water Lily

The fragrant white water lily ( Nymphaea odorata ) is a repeated river plant that has bosom - shaped leaf that grow up to 12 inches in diam . The bloom are blank with xanthous centers that float or stick above the piss ’s surface . They unfold in the daytime and close at night and are super fragrant . This plant ’s root are an important solid food source for fish and the come are often exhaust by ducks .

European Frogbit

European Frogbit ( Hydrocharis morsus - ranae ) is a humble , aquatic , recurrent works that resembles the urine lily . The eye - shaped leaves are 1 to 2 inches in diameter . The industrial plant is considered invasive because it can diffuse quickly . Frogbit will imprint a thick-skulled , impenetrable mat on the H2O ’s surface , which can prevent oxygenation . It is a free - floating plant with a lowly , white peak .

Water Moss

Water moss ( Fontinalis antipyretica ) is a submerge , evergreen plant plant . It attaches itself to rocks , logs and other objective in flowing weewee by rhizoids , or rootlet . The leaves are only a few mm long and are small , rigid and pointed . They grow together to form a carpeting - similar area , which is once in a while a home to small Pisces . Water moss does not produce flowers , instead it has spore that help with reproduction . It choose shady areas in water that is slightly acidic .

Water Horsetail

The water horsetail ( Equisetum fluviatile ) grows in dense colonies in shallow water and go water system . The radical are tall , slender , hollow and can reach up to 3 groundwork tall . This flora does not bloom ; it has a spore - producing wind at the end of the root word . Water horsetail is usually find in deeper waters than regular horsetail because the stem are more fragile and can easily be shell by the faster - moving H2O along the shore . It prefers full sun but is resistant of shade . According to the State of Washington ’s Department of Ecology , the stems were once used by Europeans and aboriginal Americans as a scrub and sanding gadget because of the high silica content .

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