Callirrhoe involucrata (T. & G.) A. Gray (purple mallow)
The root was dried and burned, the smoke inhaled for cold in the head, and aching parts were bathed in it. The root was boiled and drunk to relieve internal pains.
Caltha palustris L. (cowslip)
The root was boiled in a bit of water strained and cooled then drunk to relieve congestion of colds. The leaves and stalks were mixed with wild currant leaves and stalks in water and drank to stop urine. The root was dried and powdered, then moistened and applied as a poultice for sores from scrofula.
Campanula rotundifolia L. (harebell)
The root was steeped in water and drops put in ears of earaches.
Castalia odorata (Ait.) Woodv. & Wood. (white waterlily)
The root was dried and powdered and put in mouth to relieve a sore mouth.
Caulophyllum thalictroides (L.) Michx. (blue cohosh)
The root was mixed with water and one swallow drunk to relieve lung troubles and fevers. The root could be mixed with Rudbeckia lacinata L. (coneflower) root in equal parts and steeped in water and drunk to relieve indigestion. It could also be used to help heal burns. Also mixed with wild leek and used for an emetic.
Calvatia craniiformis Schw. (puffball)
The soft inner part was used to plug nosebleeds.
Ceanothus ovatus Desf. (new jersey tea)
The root was grated and mixed with water and a swallow drunk to relieve coughs.
Celastrus scandens L. (bittersweet)
The root was mixed with water and drank for the physic, especially for babies. The root was mixed with water and drank to stop urine. The stalk was mixed with water and applied a poultice for eruptions on the skin.
Chimaphila umbellata (L.) Nutt. (pipsissiwa)
The root was mixed with water and drops put in eyes for eye sores.
Clintonia borealis (Ait.) Ruf. (clintonia)
Fresh leaves were applied to burns. Leaves mixed with water were applied to scrofula sores.
Cornus alternifolia L. (dogwood)
The root was steeped in water, cooled, used as a wash for eye sores.
Corylus americana Walt. (hazel)
The stalk was burned and the charcoal was combined with bear’s gall and pricked into the temples with needles to stop convulsions.
Cypripedium hirsutum Mill. (ladyslipper)
The root was dried and powdered, then moistened and put on decayed teeth to dull the pain. The root was chopped up and dried, then moistened and used as a poultice for any inflammation of the skin.