>>2807461like this anon said, moss works well and it has antimicrobial characteristics since it contains iodine. another good one are polypore mushrooms like tinder conk, you can crush a bunch into a power and put it on a wound or even cut a thin slab and tie that in place. its been used by natives in north america for centuries as part of their medicines and evidently in europe as it was found famously in the gear of the ice man otzi in the italian alps
