@Chams:
Did we ever get a confirmation that the giant tree seen in Elbaf is Adam's tree?
In Franky's description of the Adam Tree he makes it seem like the country is always in war and continuously destroyed and rebuild. Elbaf does seem like a country full of fighting warriors, but it doesn't seem to be the place plagued by conflict (in Big Mom's flashback at least).
No, we don't have confirmation yet. But I am finally beginning to be convinced it is… see below.
Also, in the subject of trees, the Eve tree in Fishman Island was said to collect sunshine from the surface and send it down. But, where is it's top? Is the part that is above water and collecting sunlight Sabaondy archipelago or is there some huge tree up in the Redline in the Holy Land?
I doubt its over water as Fishman island is in the middle of that tunnel under the Red Line. Aso being part of Sabaondy archipelago would not be unique enough. When Oda's done some giant special plant it sticks out from the surrounding area: The Tree of Knowledge in Ohara, the Giant bean stalks in Skypeia, they both stuck out like sore thumbs.
I used to think its more likely to be growing diagonally, with the tree sticking out the side of the Red Line somewhere.
If the Eve Tree does get tall enough to reach from the top of the Red Line, which is 1000 ft above sea level, to its roots in FI, which likes 1000 ft below sea level, then it would have to be a massive tree. like the tree in Elbaf.