The subject of this painting refers to a Finnish-American folk cure for seasonal affective disorder (SAD) which involves bathing with grasses and herbs. The leaves are Labrador Tea (Rhododendron groenlandicum), collected from a Black Spruce bog on the shores of the Stony River, near Isabella, Minnesota.
Reference: Salo, Matt T. (1973). Roles of Magic and Healing: The Tietaja in the Memorates and Legends of Canadian Finns. Publications in Folk Culture, No. 3, National Museum of Man, National Museums of Canada, Ottowa.
P.S. The angle of this makes the composition all that more striking! The foreshortening of the face is fantastic.
Love how it almost looks like a photograph, and love the colors :] Looks very much like tea.
Nice painting.