Final answer:
Kapa is made from stripped bark from the wauke plant, which is processed to create a thin, large sheet before being decorated with island designs.
Step-by-step explanation:
According to "The Ancient Hawaiian Art of Bark Cloth", kapa is made from stripped bark from the wauke plant. The process involves removing the bark from the wauke or mulberry tree, and then the outer bark is stripped off to leave behind a white sheet. This material is then soaked in water, dried in the sun, and beaten with wooden mallets until it becomes thin. After these steps, several layers are combined and beaten together to create a large sheet, which is the kapa. Finally, it is decorated with traditional island designs to complete the fabric.