Iron-Wood. Hop-hornbeam. Ostrya virginiana.

Botanical name: 

Iron-Wood. Ostrya virginiana (Mill.) Willd. (O. virginica Willd., Carpinus virginiana Mill.) (Fam. Betulaceae.)—The wood of the hop-hornbean is said to be tonic, antiperiodic, and alterative, and the fluidextract has been used in doses of from a half to one fluidrachm (1.8-3.75 mils) in ague.

The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.