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hydrilla

   Also found in: Wikipedia 0.07 sec.
hy·dril·la  (h-drl)
n.
A submersed Old World Plant (Hydrilla verticillata) having whorled, lance-shaped leaves and unisexual, solitary, axillary flowers.
[New Latin, genus name, diminutive of Latin hydra, hydra; see hydra.]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.hydrilla - submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Florida's waterways
Hydrilla verticillata
genus Hydrilla - one species
aquatic plant, hydrophyte, hydrophytic plant, water plant - a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth


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In Florida, for instance, scientists have discovered that one type of hydrilla, a highly invasive fresh-water plant, is becoming resistant to fluridone, the only herbicide approved for use against it.
People and nature: where we've been, where we need to go; A ... by Morrison, Jim / American Forests
Sold in the 1950s for aquariums, hydrilla is a noxious weed of lakes, rivers, and canals.
Silver bullets for nasty species? by BOAT/U.S. Magazine
From kudzu to hydrilla,"invasive species are destroying our native flora and fauna, transforming our landscape and exacting an enormous toll.
Uprooted by REMBERT, TRACEY C. / E
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