all willows are not the same, but all willows contain almost same properties. Willow is also the original asprin. All willow bark contains salicin. So it's a good medicinal tree to have. White Willow bark is what we herbalists use for pain relief (for those that don't have a salicin allergy anyway). In central Texas, where I came to Colorado from, we had black willow. When I visited Taos Pueblo in New Mexico, the story teller there said they call themselves the Red Willow People... their willow is the red willow and grows in the small river that flows through their village. She said it was their pain reliever and other things. Here in Colorado, I've found three huge regular stereotypical willow trees in my neighborhood that are huge! I might eventually go ask for some cuttings. But please know that willow likes wet roots. I live a block off the Arkansas River. So it's probably why they're growing good here. But anyway, all willow trees also contain indolebutyric acid which is the main ingredient in commercial rooting hormone that you can get at the store. I hope this helps.