Saxifraga pennsylvanica (Micranthes pensylvanica) - Tall Saxifrage, kings' evil root, scrofula bush
"CONSTITUENTS: -
PREPARATIONS: It is specific as an alterative in syphilitic affections of the eyes. In glaucoma, in iritis, in ophthalmia, in cataract from syphilitic causes, our doctors have had the most marked results from the use of this remedy. Dose, F. V. Ext., from 20 drops to one dram.
Therapy: The agent is an active diuretic and an excellent tonic, as well as possessing active alterative or antiscorbutic properties."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)