Dirt on my Hand, and Spreading Mountain Mint

I was a little confused how this mint got into the east of the house flower bed the other day, when I was looking to see what plants were coming up. Look at all those roots at the bottom of the pic!  It was awesome getting my hands in the dirt, pulling up some of the mint! 

Further inspection revealed it was my new Mountain Mint. (Click to see the other post on them.)

Next is a view from above, showing some of the old stems still upright with the old blooms on them.  Other stems had fallen down, and set down roots.  

See?

Look at all those roots, and the little stems and stems starting to form.  Oh, my!

Here's another pic from above, showing the spent flowers better.  There are still stems lying around setting roots or getting ready to.  I normally don't let spreaders stay around, but I may pull out the ones I don't want, and see if they stay pulled.  The stems didn't lie down like that when they were growing in the summer, so maybe it will behave again in the summer.  Time will tell.

The other one, Virginia Mountain Mint, has been in the same spot around 6 years, and has only spread from the base.

In my searching to learn more about the Short Toothed Mountain Mint, I found a site that said pregnant women should not consume this plant, but I've never tried eating it myself.  I decided not to include a link, because it's a business website I'm not familiar with.

(I just went outside to look again, because I was noticing the leaves of this year's mint looked different from the parent plant in the pics.  My original observation was correct, and it will not be allowed to travel far.)