Latin: Collinsonia canadensis
Part of the mint family, it is a “renal and circulatory tonic” (Menzies-Trull in "The Herbalist's Prescriber")
An “anti-lithic, diuretic, diaphoretic … the treatment and prevention of stone and gravel in the urinary system and the gall-bladder.” (David Hoffman in “The New Holistic Herbal”).