noun
royal palm; Cuban royal palm
Refers specifically to Roystonea regia, a tall palm tree often planted in tropical and subtropical landscapes.
公園の並木道にはダイオウヤシが植えられている。
Royal palms are planted along the avenue in the park.
From 大王 (daiō, 'great king') + 椰子 (yashi, 'palm tree'), a calque of the English 'royal palm'.