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duckweed

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

duckweed any plant of the genus Lemna and sometimes of related genera. Duckweeds are tiny floating or submerged aquatic plants with reduced or obsolete roots. They flower only rarely, and their flowers are small and inconspicuous. Duckweeds grow in freshwater throughout most of the world. They are classified in the division Magnoliophyta , class Liliopsida, order Arales, family Lemnaceae.

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duckweed

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

duck·weed / ˈdəkˌwēd/ • n. a tiny aquatic flowering plant (family Lemnaceae, esp. the genus Lemna) that floats in large quantities on still water.

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duckweed

World Encyclopedia | 2005 | Copyright

duckweed Family (Lemnaceae) of four genera including 25 species of tiny, floating, aquatic flowering plants. The disc-like leaflets have a single 15cm (6in) trailing root.

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duckweed

A Dictionary of Plant Sciences | 1998 | | Copyright

duckweed See LEMNACEAE.

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MICHAEL ALLABY. "duckweed." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "duckweed." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O7-duckweed.html

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duckweed

Oxford Dictionary of Rhymes | 2007 | Copyright

duckweed •accede, bead, Bede, bleed, breed, cede, concede, creed, deed, Eid, exceed, feed, Gide, God speed, greed, he'd, heed, impede, interbreed, intercede, Jamshid, knead, lead, mead, Mede, meed, misdeed, mislead, misread, need, plead, proceed, read, rede, reed, Reid, retrocede, screed, secede, seed, she'd, speed, stampede, steed, succeed, supersede, Swede, tweed, weak-kneed, we'd, weed •breastfeed • greenfeed • dripfeed •chickenfeed • spoonfeed • nosebleed •Nibelungenlied • invalid • Ganymede •Runnymede • airspeed • millipede •velocipede • centipede • Siegfried •filigreed • copyread • crossbreed •proofread • flaxseed • hayseed •rapeseed • linseed • pumpkinseed •aniseed • oilseed • birdseed • ragweed •knapweed • seaweed • chickweed •stinkweed • blanket weed • bindweed •pondweed • duckweed • tumbleweed •fireweed • waterweed • silverweed

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Free newspaper and magazine articles

	Duckweed: cleaning water at the grassroots. Magazine article from: World Watch; 11/1/1993
	Duckweed veggies. (Kibbutz Tzora's Greenies duckweed artificial vegetable)... Magazine article from: Israel Business Today; 9/4/1992
	Genetically engineered duckweed to produce insulin Magazine article from: Resource: Engineering & Technology for a Sustainable World; 3/1/1999