I posted these two plants before but couldn't get a good ID. Maybe these new pictures will help. Anybody?
pic on left looks very much like mums.one on right possibly a russian tamarisk...does it get pink feathery blooms???
2. Should the flowers be yellow, then it may be Solidago, common name Goldenrod. Pics of the flowers would help all of us.
Based on the initial information about the plant on the right (Conyza canadensis) I removed it, so no way to check the flowers any more :(