Carolina Geranium - looking for sources of info

I have been searching (without success) for sources of information on the local weed Carolina Geranium. I am pretty sure that it has some edible/medicinal benefits but I am not able to find the details. So far I am seeing sites that say it is edible but not info on specific nutrition or medicinal uses. Does anyone have any good leads?

I came across this post while googling geranium carolinianum. Try materia medica geranium carolinianum. There is a lot of stuff. It's in medicalese if you understand such.

eattheweeds.com says: "The G. carolinianum is a miniature version of the G. maculatum. It has a history of medicinal uses. The whole plant, but especially the roots, is astringent, salve and styptic. It can be used as a gargle for sore throats. The plant is high in tannins, which is why it is bitter and used for diarrhea. A medicinal tea can be prepared by boiling 1 to 2 teaspoons of the root for ten to fifteen minutes in 2 cups of water. One can drink three or more cups per day. A tincture (approximately 1/2 teaspoon) can also be take three times a day"

Hope this helps.