It's in the mint family (Lamiaceae) and I think a medicine. I can even see the square stem in the photo. Give me a day or so to parse it out. (I know what this is... just can't remember at the moment... ).
It's either a lobelia or a shullcap... that doesn't grow where I live. I need several more photo's too nail the species. You have to give me more here...
Ok @Peanut it's only been 2 years since I asked about this plant. It still grows there (local park). I forgot to take a deck of cards, but how about a key for size comparison?
Look up Ajuga reptans... Lamiaceae - common bugle weed. Thats as close as I can find in the data bases. It's one of the small ornamental mints... not used medicinally
From the Mint family, Teucrium canadense (Germander of several names, including Hairy and American, also Wood Sage). Flowers I found photos of on wildflower.org match it exactly, as well as description of leaves, stalk, etc.
Sorry I couldn't get an exact id for you. Funny.... I knew I'd never seen your plant before. According to the usda it's only been found in 5 locations in my entire state, 3 of those around Mobile. The closest to me was 130 miles away. Years ago I heard it described in comparison to another mint.
I was reading about the medicinal value = no.
It can cause liver damage and use of this plant has been banned in foreign countries, that's a switch, huh.
Native Americans used it but I'll just say, nah. The flowers are so cool looking. The wildflower.org website has helped me to ID other flowers too. Handy website.
The flower/plant can be found in many places.
So many of the mints are medicinal I sometimes forget there are a few that aren't. Or maybe since they never come up in conversation with plant people they are easy to forget. If something has medicinal value it automaticly gets filed away in my mind... If something isn't... pretty much in one ear and out the other.