In June of last year I hiked up a small mountain along the Columbia River Gorge to take in the view with my wife. I pulled out a knife to cut back a blackberry vine and inadvertently sliced myself along my hand. It was a deep cut and I knew it was going to be a problem that needed emergency care and stitches. We were a good hour from the base and then another half hour to Hood River- the nearest town. I was worried about severe bleeding and I looked around and found some yarrow growing near me. I cut off a stalk and quickly chewed up some of it while my wife ripped some cloth from an old t-shirt in her backpack. I wrapped my wound with the yarrow and the bandage as a poultice and we started quickly walking down the trail. I kept looking for signs that the copious blood flow was seeping out through the cloth and to change the poultice if need be- but I was surprised to see there was no need for changing dressing.