from The Century Dictionary.
- noun A name given to the astringent root of several plants, as Heuchera Americana and Geranium maculatum.
Sorry, no etymologies found.
Mrs. Norton: I would suggest that hardy alum-root, or heuchera.
Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916