Ents are a race of beings in J. R. R. Tolkien's fantasy world Middle-earth who closely resemble trees. They are similar to the talking trees in folklore around the world. Their name is derived from the Anglo-Saxon word for giant.
'If thou hadst thy will what wouldst thou reserve?' said Manwë. 'Of all thy realm what dost thou hold dearest?'
'All have their worth,' said Yavanna, 'and each contributes to the worth of the others. But the kelvar can flee or defend themselves, whereas the olvar that grow cannot. And among these I hold trees dear. Long in the growing, swift shall they be in the felling, and unless they pay toll with fruit upon bough little mourned in their passing. So I see in my thought. Would that the trees might speak on behalf of all things that have roots, and punish those that wrong them!'
'This is a strange thought,' said Manwë.
'Yet it was in the Song,' said Yavanna. 'For while thou wert in the heavens and with Ulmo built the clouds and poured out the rains, I lifted up the branches of great trees to receive them, and some sang to Ilúvatar amid the wind and the rain.'
Then Manwë awoke, and he went down to Yavanna upon Ezellohar, and he sat beside her beneath the Two Trees. And Manwë said: 'O Kementári, Eru hath spoken, saying: "Do then any of the Valar suppose that I did not hear all the Song, even the least sound of the least voice? Behold! When the Children awake, then the thought of Yavanna will awake also, and it will summon spirits from afar, and they will go among the kelvar and the olvar, and some will dwell therein, and be held in reverence, and their just anger shall be feared. For a time: while the Firstborn are in their power, and while the Secondborn are young." But dost them not now remember, Kementári, that thy thought sang not always alone? Did not thy thought and mine meet also, so that we took wing together like great birds that soar above the clouds? That also shall come to be by the heed of Ilúvatar, and before the Children awake there shall go forth with wings like the wind the Eagles of the Lords of the West.'
Then Yavanna was glad, and she stood up, reaching her arms towards the heavens, and she said: 'High shall climb the trees of Kementári, that the Eagles of the King may house therein!'
But Manwë rose also, and it seemed that he stood to such a height that his voice came down to Yavanna as from the paths of the winds.
'Nay,' he said, 'only the trees of Aulë will be tall enough. In the mountains the Eagles shall house, and hear the voices of those who call upon us. But in the forests shall walk the Shepherds of the Trees.'
Then Manwë and Yavanna parted for that time, and Yavanna returned to Aulë; and he was in his smithy, pouring molten metal into a mould. 'Eru is bountiful,' she said. 'Now let thy children beware! For there shall walk a power in the forests whose wrath they will arouse at their peril.' - From the Silmarillion
Trees Mycorrhizal Fungi