Nandor

The Nandor (sg. Nando), who included the Silvan Elves and Green-elves, were one group of the Teleri. Like the Sindar, they were Úmanyar, Teleri who began the Great Journey but did not complete it. Some later came into Beleriand and dwelt in Ossiriand, while those that remained founded realms of their own in the Vales of Anduin. The Elves of Lórien were of this kind, as were the Wood-elves of Mirkwood.
As other Teleri, they loved water and dwelt most beside falls and running streams. But living wild in nature, they had greater knowledge of trees, plants, animals and birds, than all other Elves.