Comments: Ammophila arenaria occurs on coastal sand dunes throughout the world. Along the west coast of the United States, it thrives in areas of active sand movement and most often occupies the windward slopes of exposed dunes. However, it may extend inland for several miles. It grows on well-drained soils with various mineral compositions, including the sands of the Pacific Coast. It tolerates a range of soil pH from 4.5-9.0 and soil temperatures from 10-40 C (Ranwell 1959).
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