A tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States.
1 That has led to the rapid growth of invasive plants, particularly water hyacinth .
2 Farm-yard manure is preferred, but castor-cake and the water hyacinth -a weed-constitutegood substitutes.
3 A water hyacinth , and its purple spike topped his head as he stood waist-deep.
4 This toxic run-off has triggered the invasion of a plant species known as the water hyacinth .
5 And a British group used powdered water hyacinth root to clean arsenic out of Bangladeshi groundwater.
6 Phosphates and nitrates leached from flower greenhouses have spread mats of oxygen-choking water hyacinth across its surface.
7 Stay tuned-andstay away from water hyacinth .
8 Non-native species, such as the South American water hyacinth , are causing immense damage to Lake Victoria among others.
9 A rapidly growing plant, the water hyacinth blocks waterways and prevents sunlight and oxygen from reaching submerged plants.
10 I watched an early heron slide its snake-like neck into a patch of water hyacinth while Billy shifted gears.
11 A water hyacinth - what was it?
12 As the lake level drops, water hyacinth - aSouthAmerican perennial that invaded Africa as a potted plant-crawlsashore, beating back the papyrus.
13 The woman was younger, her hair the sleek, soft hue of a fox's pelt, and her eyes were the lavender-blue of the water hyacinth .
14 Water hyacinths efficiently absorb nutrients from eutrophic waters, mitigating nutrient pollution problems.
15 Water hyacinth forms dense, sprawling mats on the water's surface that even commercial boats can't penetrate.
16 Some one gave him two water hyacinths .
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