Sycamorte is the boss kin encountered in Kindred Wilds (Stage 4), which resembles a large white tree.
Sycamorte is a portmanteau of "Sycamore" - a large tree native to the United States, and "morte" - which means 'death' in Latin.
Sycamorte is a popular boss kin favored among Lake Kindred players for its generous Gaia Gold drop amount (up to 2 Billion Gaia Gold), and its highly sought-after Sycamorte Seed - a rare RIG that is capable of generating various Lake Kindred items, including Kindred Eggs.