Seatree
native to Calamari, this was a species of trees that grew beneath the surface of the water. Seatrees had supple, leather-like bark and leathery fronds that were shot through with bright blue and red veins. Air-filled fruit-like bladders kept the treetops afloat. The fronds of the trees formed complex underwater networks used as homes by many forms of sealife. They were also used to store supplies.