Hi, here's the list from the inventory guide for you. If you don't have any of the resource items, then you spawn from the 2 plants below. Good luck!
Wisp essence is found by: defeating wisps (which spawn from Grand rooted lilium, Cloudberry bushes), wisp (pet), Firefly, Grand Firefly, Enchanted Fawnicorn, Fawnicorn, Wisp, Red Nose Fawnicorn, Katz Brother, Katz Sister
How do I spawn wisps? Need wisp essence for