Other info from Missouri Plants. - This little aromatic plant is sometimes overlooked in the field but is quite nice. The leaves of the plant are quite minty and have been brewed traditionally as a tea for medicinal and culinary uses. The tea was used to treat headaches, fevers, and even snakebites.
This species, and a handful of others, are also producers of something called "frost flowers." Frost flowers are thin, layered eruptions of ice crystals which burst from the xylem of the plant stems in early fall.

For medicinal uses see

King's American Dispensatory, 1898

On Henriette's Herbal webpage