1. The
is a free-floating
perennial plant that can grow up to a height of
3 feet above the surface. It has striking light-blue
to violet flowers located on terminal spikes. Its
flower is seen as an aquatic pest because it can clog
streams and kill underwater flora and fauna by
covering the water surface, thus resulting in cutting
off supply of oxygen and sunlight.
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Explanation:
Water hyacinth is a free-floating perennial aquatic plant (or hydrophyte) native to tropical and sub-tropical South America. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 meter (3 feet) in height.
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