大米草原产于英国南海岸,是欧洲海岸米草和美洲米草的天然杂交种。目前英国、荷兰、丹麦、澳大利亚、美国等许多国家都有栽培,世界栽培历史80余年。我国20世纪60年代从美国引进,现已在北起辽宁锦西,南至广东电白,50多个沿海县的海滩上都引种成功,大面积种植。 Rice grassland is native to the South Coast of England and is a natural hybrid between the European seagrass and American seagrass. At present, Britain, the Netherlands, Denmark, Australia, the United States and many other countries have cultivated the world’s cultivation history of more than 80 years. China introduced from the United States in the 1960s, and now it has been successfully introduced and grown on large scale on the beaches of Liaoning Jinxi in the south, Guangdong Dianbai in the south and more than 50 coastal counties.