The American Materia Medica, Therapeutics and Pharmacognosy, 1919, was written by Finley Ellingwood, M.D. Cascara Sagrada. Rheum. Rheum officinale. Aloes. Aloe socotrina. Senna. Cassia acutifolia. Ricinus. Ricinus communis. Olive. Olea europea. Paraffin Oil. Book Navigation ‹ Group V. Agents acting upon the intestinal glandular organs and upon the intestinal canal. up Cascara Sagrada. ›