Ctenium aromaticum Panz. (Aegilops aromatica Walter, Monocera aromatica Elliott, Chloris monostachya Michaux,) is a grass restricted to wet areas of the coastal forest of the S.E. US. Knowledge of the pungent taste and numbing caused by chewing this grass dates from the 18th century or earlier (Walter, 1788; Michaux, 1805; Elliott, 1821), but use of this grass for allaying toothache was oversha...