Professor Asa Gray described it and named it Parthenium argentatum, or the silver Pallas.
"Creative Chemistry" by Edwin E. Slosson
We of course went to see the ruins of the Parthenium, built by Pericles and ornamented with the marbles of Phidias.
"Around the World with Josiah Allen's Wife" by Marietta Holley
Parthenium Hysterophorus L. Composite family.
"Texas Honey Plants" by C. E. Sanborn