I spent an hour trying to decipher this plant again and last time I came up with Tall Buckwheat but I still don't think that's right. I even used my five free tries on PlantSnap and nothing looked right. And I thot this was a decent enuf picture too. So I guess I'll have to get a few more photos of it to see if I can get an ID. I've seen it on Lookout and the Phx Mtn Preserve.