The phrase "floating weed" is correct and can be used in written English as a noun phrase.
It refers to any type of aquatic plant that floats on the surface of water. Example: "The lake was covered in a thick layer of floating weeds, making it difficult for the swimmers to reach the other side."
The floating weed grew aggressively.
The aesthetic satisfaction index was consistently low, driven by the high turbidity and a widespread presence of exotic floating weed species (Nymphaea mexicana, also known as the Yellow Waterlily).
So much reedy tule has sprouted along the banks, like bushy tufts of hair, that officials have called in a huge floating weed whacker, nicknamed the Terminator, to cut through it and help keep the water flowing — a problem inconceivable in years past.
On the other hand, when Ozu returned in 1959 to 1934's A Story of Floating Weeds - hardly a model of hysterical bombast - he pared down its characteristically heartbreaking simplicity even further.
They appear as beautiful young women with long pale green hair and pale skin, suggesting a connection with floating weeds and days spent underwater in faint sunlight.
In 1135 the famous general Yue Fei (1103 1142) ambushed a force of rebels under Yang Yao, entangling their paddle wheel craft by filling a lake with floating weeds and rotting logs, thus allowing them to board their ships and gain a strategic victory.
Towpaths are bordered by floating pennywort weed.
The Sargasso is the creation of the great currents of the N. Atlantic that encircle it & bring into it the millions of tons of floating sargassum weed f from which the region derives its name.
Jacanas with their greatly elongated toes and claws walk over floating water weeds, and herons with long legs wade in shallow water.
Passing through the Sargasso Sea on the way to the Galápagos, Beebe was fascinated by the diversity of life that could be found in the sargassum weed floating on the surface, and spent several days scooping the weed from the water to examine the creatures that lived in it.
They can also see something else - bits of coral or weed floating at the wa ter's edge.
