marram grass(redirected from marram grasses)
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marram grassAmmophila arenaria, a grass found on coastal sand dunes. It is a XEROPHYTE that is capable of rolling its leaves to prevent water loss in dry conditions. It has deeply running stems (RHIZOMES) and roots that bind the sand in the dunes and thus is often planted to stabilize dune systems.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005