What is water hyacinth?

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Sanobar Mir 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Water hyacinths are the only large aquatic herb that can float on the water unattached to the bottom. They float on bloated air-filled hollow leaf stalks. The leaves of free-floating water hyacinths are characterised by a bulbous swelling in a section of the petiole. The oxygen bubbles float to the surface of water and get released into the air which provides buoyancy.
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