So after verifying the ID, I reached out electronically to a forager from Michigan who I've come to respect. She is well versed in medicinal as well as edible plants, and prickly ash is both. Known for it's analgesic properties, it was used regularly as a toothache remedy by native tribes in North America. I tried chewing some of the seed hulls, which have a lemony flavor. Within seconds my tongue was tingling, followed by a numbing effect. Cool stuff.