I will have to follow that link and see what lavender does. We started a lot of it last year and it’s doing well. Also I ate a lot of dandelion salad growing up, always in the spring with the young leaves. My grandmother was well known for a poultice from a common weed, I am thinking pigweed?? No way to find out now.
I am remembering when my Dad was up here and pointed the plant out, again down near the barn, and after seeing this article I am thinking the poultice was from plantain. He said she use it for a poultice.
https://commonsensehome.com/grandma-called-it-medicine-leaf/
Outdated been mullien (sp?) Or comfrey or plantain- they are common weeds which folks make poultice out of. Plantain is good for either wasp or bee stings, can’t remember which now. Was riding 3 wheeler through woods one year, yellow jacket I think hit me right below the eye, stung me. I found and chewed some plantain and it put it on the sting, as the eye was swelling up bad, and it helped,receive the stinging and swelling went down a bit by time I got back home.