Union grass; especially a tall grass, Uniola paniculata, which grows on and stabilizes coastal sand dunes in the south-eastern United States and the Gulf of Mexico.
Origin
Late 19th century; earliest use found in The Botanical Gazette.
Definition of sea oats in US English:
sea oats
noun
Union grass; especially a tall grass, Uniola paniculata, which grows on and stabilizes coastal sand dunes in the south-eastern United States and the Gulf of Mexico.
Origin
Late 19th century; earliest use found in The Botanical Gazette.