“Our first Middle-earth design, Ancients of Gondor, is inspired by the lineage of White Trees. The original White Tree was much beloved by the Elves. Emanating silver light, it is said the Moon was formed from its last silver flower. Each tree thereafter is seen to symbolise divine qualities of goodness, wisdom and purity.
These gorgeously intricate trees are representative of a line starting with Celeborn – the last White Tree to grow in the original dwelling place of the Elves, leading to Nimloth – a sapling of Celeborn that was planted in the land of Númenor, and finally to a sapling of Nimloth that became the first of the line to be found in Middle Earth – the White Tree of Gondor.”
In J. R. R. Tolkien’s high fantasy universe of Middle-earth, the White Tree of Gondor stood as a symbol of Gondor in the Court of the Fountain in Minas Tirith. The White Tree also appears as a motif upon Gondor’s flag and throughout its heraldry combined with the seven stars of the House of Elendil and the crown of the King. Source: Wikipedia