Nimloth (tree)
From Tolkien Gateway
(See also Nimloth, wife of Dior Eluchíl)
Nimloth was the White Tree that grew in the King's Court of Númenor. It was burned at the instigation of Sauron. Isildur stole a fruit from the tree before it was destroyed, which he later planted in the courts of Minas Tirith.