The American Materia Medica, Therapeutics and Pharmacognosy, 1919, was written by Finley Ellingwood, M.D. Erigeron. Erigeron canadense. Cinnamon. Cinnamomum zeylanicum. Capsella. Capsella bursa pastoris. Alumen. Alum. Urtica. Urtica dioica. Achillea. Achillea millefolium. Acidum Gallicum. Acidum Tannicum. Book Navigation ‹ Guaiacum. Guaiacum officinale. up Erigeron. Erigeron canadense. ›