Plant ID - garden "weeds"

Hi all,

Moved to a new property in the fall and prepared the garden beds in the fall. While raking off the leaves today I came across a number of pioneer herbaceous plants, aka weeds.

Can anyone identify one of the following three weeds?

All are less than 2" tall found in zone 4b New England
Soil is excellent, amended with manure for a century. There are tons and tons of worms.
Site is in a river valley. Site was used as a vegetable garden except for summer of 2012.

If useful and/or not competitive with veggies I will leave them in place and happy.

Any ideas? Thanks in advance!
Guarren

More pics:

I would guess Cinquefoil for the first and third is screaming legume to me. That might narrow down your search.

I am piggybacking on this thread as for the first time I have a proliferation of the weed pictured below in my "no till" garden and identifying it will help me decide whether I just leave it as a groundcover and hoe where I need to plant or pull it ?
Can anyone help identify this weed please ?

I am going to say Black Medic and cinquefoil.Not sure about the middle one. Maybe prickley lettuce?

Look here for some pictures.

http://www.garden.org/weedlibrary/index.php?q=all_thumbs&keyword=Broadleaf Weeds

The new one is Henbit. Let us know if you find out the answers for the others. I'm excited to learn more plants.

the third one is a clover of some sort. In a week the leaves will be unfolded more and you'll have a better chance of knowing which clover variety it is. Most likely whatever dominates your area naturally.

We call the purple one 'red deadnettle' - Lamium purpureum- edible but not top drawer...