We call these trees bhungkana nyeor. It's thin and high rod evenly spread at all Madura coastal region . You can proved it by traveling around the island, and see how the tress dominate your vision. Caused by suitable soil and climate, coconut grows in it's maximum capacity.
Every part of the plant useful for human life, especially at Madura culture. Therefore they love it very much, with all of their hearth. It's leaves, rod, root and of course fruits, every single part of every individual species (Cocos nucifera) cannot be wasted.
Closed relation between Maduras people and bhungkana nyeor draws upon how they used the tress as symbol of their principles of life. Maduras people wish their self can be as coconut, which survive in extreme condition. Moreover, still like the tress, they want to be useful in their family and society. The Maduras is one of great nomads in the world. They keep brotherhood every where they lived in.