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

Hmmm, my first guess would be cinquefoil. Some cinquefoils are weeds and should be removed. Not sure if it is what you have but it is the only thing I can think of. The first link, copy and paste into your browser, is a google image search for "cinquefoil weed colorado". The clickable link is a google image search for "cinquefoil". If it looks like it could be a cinquefoil, do your own research before deciding if it can stay of if it needs to be removed!! http://images.google.com/images?hl=en&client=firefox-a&rls=org.mozilla:en-US:official&hs=hW3&q=cinquefoil%20weed%20colorado&um=1&ie=UTF-8&sa=N&tab=wi Good luck IDing this! Here is a link that might be useful: cinquefoil

You could also visit the Annuals Forum for more details about the culture of torenia. I've been recommending it for a long time as a substitute for the problematic impatiens, as something that will thrive in semi-shady locations.

The Aloe is likely a hybrid. The Euph. looks to possibly be a monstrose form of some sp.. 6. I think is a Gymnocalycium sp. 7. Looks like an Aeonium in form. Some sedums have this form, but are usually not this large. 8. You may be able to I.D. this Mammillaria at the CactiGuide site. Look for Mamms that bifurcate vs. ones that stay single. It looks like a common one so you should be able to find it. Sorry I don't have any complete I.D.'s but maybe the leads will help.