Here is Unknown Weed #2, which grows small and beautiful Purple-Magenta flowers:

Another picture of Unknown Weed #2, showing the Flowers. You will also notice Stinging Nettle, Chickweed, Lettuce and Cilantro mixed together.

Second one is Henbit, Lamium amplexicaule.

Thanks! Wow, that is awesome. I found this page claiming that Henbit is edible:

http://www.eattheweeds.com/henbit-top-of-the-pecking-order/

Has anyone else tried eating Henbit?

Here is a link that might be useful: Henbit: Top of the Pecking Order (from Eat the Weeds)

As long as it's cooked I see no problem eating them.

Is it absolutely necessary to cook Henbit? If not, can you get sick?

I'm not concerned about the Henbit which is harmless.
I'm more concerned you could pick up a parasite from
a snail or slug that munched on the leaves and left a
"present".

I've never thought about getting sick from eating raw vegetables from my garden ... I often pick Greens while I'm in my garden and eat them raw. I do look for bugs and if I only see one or two, I flick the bugs off the leaves. If I see an infestation of bugs, I cut the leaves off and throw them in the garbage dumpster.

This year my garden has not had many bugs. The biggest problem with bugs is the Kale and Kohlrabi, Also Chinese Cabbage, Red Giant Mustard, but not as bad.

Here is Unknown Weed #3 from my garden. It's the plant with the large Fern-like leaves.

I believe #3 is Erodium moschatum.

Could #1 be Erigeron annuus?