When our family moved to this home in 1995, I immediately started planting what I thought were medicinal plants. When I ordered slippery elm, I bought it online and there were no native plant nurseries here. A few weeks ago, someone from our local native plant nursery noticed all of the little slippery elm trees that have started to grow. She thought perhaps that they're actually Chinese elm. I will now try to pull out some of my books and see if I can figure out what I have. If it is Chinese elm, would it have the same properties as native slippery elm? I've never tried harvesting and using what I have, so I don't know from personal experience.