Hieracium. Rattlesnake Weed, Poor Robin's Plantain. Hieracium venosum.

Botanical name: 

Hieracium. Hieracium venosum L. (Fam. Compositae.) Rattlesnake Weed. Poor Robin's Plantain. Eperviere, Fr. Habichtskraut, G.—The plant is common, growing in dry places and open woods from Maine to Georgia and westward. The leaves and roots are thought to possess medicinal virtues, and, being deemed astringent, have been used in hemorrhagic diseases. The juice is supposed by some to have the power of removing warts. Dose of infusion (two ounces to the pint), a wineglassful (60 mils).

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