duckweed

Duckweed is being studied by researchers around the world as a possible source of clean energy.

Unblinking black eyes pushed up through the duckweed, watching them.

I passed a pond covered with duckweed where a blue heron walked at the water's edge.

It is one of several genera containing plants commonly called duckweed.

Furthermore, chemicals used to clean up oil spills may have contributed to the duckweed problem.

Things moved through the dark pools, lifting the film of duckweed on the slow rolling waves.

Advice for readers on dastardly duckweed and white garden shrubs.

You'd better let that duckweed tiara dry out a bit before you wear it, though."

Dim lighting and a duckweed covering complete the tank.

As of 2007 the duckweed problem continues.

It goes like this: Scientists studied a floating aquatic flowering plant called duckweed.

(duckweed) and are the preferred habitat for this fish.

Not long before they settled down to sleep, Duckweed and Streamer returned.

Duckweed drifted in thick mats on the water, looking like manicured lawn.

Jennsen noticed eyes poked up through the duckweed, watching her pass near by.

Duckweed choked a pond, crowding out a few sad water-irises.

Many small aquatic animals use plants like duckweed for a home, or for protection from predators.

Harvesting is done such that less than a kilogram per square metre of duckweed remains.

The nitrates are used as food for algae and fertilizer for duckweed.

The evolution of flowering plants balances on a patch of tiny duckweed.

Some plants are free floating at the water's surface in dense mats like duckweed or water hyacinth.

Because it is so often found in areas that contain duckweed, the yellow spots on these turtles may serve as a form of camouflage.

This duckweed grows in slow-moving, calm, and stagnant freshwater habitats.

The land is in good condition, with ponds of duckweed and other wetland plants that harbor several pond turtles.

Despite these problems, the weed may yet have some positive use; duckweed can be treated to be fed to poultry or to make paper.