what is the function of swollen petiole in water hyacinth?
Aquatic plants often possess specialized parts that have allowed them to adapt to and thrive in their watery habitat. A handful of aquatic plants utilize inflated leaf stem, or petioles, for buoyancy and sometimes other purposes. In addition to these few plants with inflating stem , many aquatic plants, including waterlilies, have gas -conducting tissue in their leaf stems known as aerenchyma that moves air between the leaves and submerged roots.
Water Hyacinth (Eichhoria Crassipes) is a free-floating aquatic plant native to South America but found throught much of the southern United States. This plant can grow uop to 3 feet tall; features attractive, light blue to violet flowers on a terminal spike; has a thick, fibrous root system; and has dark green circular leaves attached to an inflated petiole. Water hyacinth has an aggressive habit and can form thick , oxygen-depleting mats.
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