They used the components of the plants especially the top of the plants, flower, seed, stem, root or trunk for cooking. The components of wild plants they ate were; top of the plant 81 kinds, leaves 72 kinds, fruits 71 kinds, trunk/branch 44 kinds, flower 29 kinds, shoot 21 kinds, whole stem 20 kinds, seed 14 kinds, head 7 kinds and root 2 kinds respectively.