Ambrosia artemisiefolia

Natural History.
      Ragweed.
      Roman Wormwood. Hog weed. (America.) N. O. Composite. Tincture of fresh flower heads and young shoots.

Clinical.
      Coryza.
      Hay-fever.

Characteristics.
      Dr. E. T. Marsh and another experimenter suffered severely from symptoms of coryza and hay-fever while observing the pollen of this plant.
      It should therefore be of service in similar affections.