Sunlight Tree Eve

The Sunlight Tree Eve (陽樹イブ) is a colossal tree that absorbs sunlight and transfers it to its roots that also supply air to the ocean floor through respiration.

It is said by Neptune that it is like the boss of the Yurukiman Mangrove at the Sabaody Archipelago. It is through this tree's roots that Fishman Island is able to have light 10,000 meters below the surface of the ocean. It was first mentioned by Neptune when asked by Nami why the ocean floor was so brightly lit..

Usopp notes there may be some connection between it and the Treasure Tree Adam.

Trivia

 * The names "Adam" and "Eve" were supposed to be the names of the first two humans, according to biblical text.