A laurel tree with holy leaves stood in the royal 60 home’s inner court, revered for many years. They say father Latinus found this tree when he built the citadel. He made it sacred to Apollo, and named his folk Laurentians.
Two passages from JRR Tolkien's "Lord of the Rings":
"‘For myself,’ said Faramir, ‘I would see the White Tree in flower again in the courts of the kings, and the Silver Crown return, and Minas Tirith in peace'"
"Upon the black surcoats were embroidered in white a tree blossoming like snow beneath a silver crown and many-pointed stars. This was the livery of the heirs of Elendil, and none wore it now in all Gondor, save the Guards of the Citadel before the Court of the Fountain where the White Tree once had grown."
