Telperion

Telperion, called the White Tree, was the elder of the Two Trees of Valinor which shed silver light on the domain of the Valar. His leaves were of dark green, shining silver beneath, and his boughs were decked with brilliant flowers that shed a rain of silver dew.

Telperion endured throughout the Years of the Trees, but came to an end in the dreadful event known as the Darkening of Valinor. Even though the elder tree did not survive, he was not the last of the White Trees. Yavanna had made an image of him in Tirion, called Galathilion, from whom the White Trees of Númenor and later of Minas Tirith were descended. More importantly, one of Telperion's flowers survived the Darkening, and was set aloft by the Valar; this was the light we call the Moon.