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Seagras Video Stock Footage

A common marine herb, the rhizomatous plant forms meadows which stabilise sands the intertwining roots and leaves protects the substrate from ocean currents. The species is perennial, bears its male and female flowers on separate plants, and produces fruit on the leaves. The plant reproduces by viviparous means, the seed germinating before leaving the plant and floating freely. The seedling forms a comb of bristles that can anchor it at the new site before the development of roots and a rhizome allow the plant to fully establish itself. The leaves are arranged at the end of its many branches, attached in an overlapping sheath, and are bright green, perhaps with red patches. These assist in maintaining the meadows cohesion by protecting against erosion from the ocean's currents. Each leaf blade may be up to 75mm long, with a uniform width of 2.5 to 6mm, four or five of the ribbon-like leaves rise upward from the many branches. The form of the sheath, and the longer leaves, differentiate this species from its cogenor Amphibolis antarctica, and it is found in rougher oceans than that species.

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Plantae: Tracheophyta: Alismatales: Not Assigned: Cymodoceaceae: Amphibolis griffithii

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