i think it could be interesting to add:
-a way to cultivate food,
-seeds that you can plant, growing into alien flowers with bulbs that release plant monsters,
-also, kudzu vines (invasive vine species in the americas, grows very fast and blankets terrain with plantlife) or really any plant that grows and spreads on its own. pictured below
-pinecones that fall out of trees and hurt players, can be used to grow more trees in survival
-bees. bears love honey! why not make it so that bees live in trees!