vallisneria is a submerged aquatic plant . what adaptations it will show ?
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Vallisneria produce a coiled peduncle (female), which straightens out so the stigma can reach above the water surface. The spathe (male) also straightens out so its petals break loose and float on the surface. Its three leaves and anthers form a sailboat. The spathe floats along until hopefully it bumps into a stigma.
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