I hope you don't mind a few more observations... First off, I was going by the numbering at the top (16 of 44, for instance) and didn't see the numbering at the bottom until now, so several of you labels are off. Sorry. The numbers I've used below are your labels. :) 2 could be strawberry or mock strawberry, or maybe something else 4 is a weed 5, 34, 36 and 41 could be Echinacea or Rudbeckia, or something else 7 might be a milkweed, snip a bit of leaf and see if has milky sap 15 could be Jupiter's Beard, Centranthus ruber, it will have salmon pink flowers very soon if it is 17 could be Valerian or Peony, or something else 18 is extremely cool and I would love to know what it is, I hope someone will recognize it! 19 could be Moonbeam Coreopsis 20 might be Hydrangea 23 is a grass that has volunteered in the middle of your lily of the valley 24 looks like Goldenrod, Solidago, to me 25 is a weed 26 and 35 might be Veronica 27 and 28 might be weedy honeysuckle, Lonicera 38 could be a Centaurea montana seedling 40 could be Rudbeckia (a different kind than the others), Plantain (a weed), or something else 42 the plant in front is a Hosta, the ones behind could be Dame's Rocket 45 could be Dame's Rocket

Looks like it might be a Euphorbia. Similar to this one, if not the same: Euphorbia bicompacta var. rubra http://davesgarden.com/guides/pf/showimage/262431/

Assuming this is Oncosiphon,some people asked for seeds and I would be glad to provide some but have no idea how to get seeds. I'm not a real gardener, just wanted to know the name of this plant that is all over the foothills north of Phoenix. So if someone could give me a few instructions re how to collect seeds I would be happy to send some off when they are ready. thanks Caroline (OP) Cave Creek AZ

Yes, an awful weed . https://content.ces.ncsu.edu/mulberryweed-fatoua-villosa