Well, with Vine, it uses the spinal cords structure as a medium to create a hand whip so to speak. The whip is broken into segments, and when moving, due to the malleable cotlege on the in side of the whip, it can bend and wrap round targets, as seen when Kimmaro took his own im sure it had spikes on eacg on which he formed due to his kg. Its very good for a reaching technique cause it can wrap around objects. Can also whip it at projectiles to bat the away. Now with Flower, it grows out the bones from the arms, and twist to form a spear. Its very powerful really, as it can be used to piercing through attacks. One let down is it slows the user down due to the weight and size of the spear. Now together, the at like a sword and shield. Both act as a defense , but can work on offense. The spear is enough to block attacks, and using the whip, the user can attack from suprise with little effort