You can craft a tree sap tap and attach it on the redwoods large tree...they will produce overtime up to 20 saps

A Theri leveled in delicate harvesting and melee can gather sap from the Joshua trees on scorched/extinction/rag about as efficiently as a chainsaw, and without expending any fuel.

Gachas can "produce" these. I call those Gachas "Saps".

Don't waste time with tree taps. Just go on valguero and farm redwood tree stumps, you can find them even on spawns