U. S. DEPARTMENT OF AGRICULTURE. BUREAU OF PLANT INDUSTRY--BULLETIN NO. 89. B. T. GALLOWAY, _Chief of Bureau_.

WILD MEDICINAL PLANTS OF THE UNITED STATES.

BY

ALICE HENKEL, ASSISTANT, DRUG-PLANT INVESTIGATIONS.

ISSUED JANUARY 16, 1906.

WASHINGTON: GOVERNMENT PRINTING OFFICE. 1906.

BUREAU OF PLANT INDUSTRY.

B. T. GALLOWAY, _Pathologist and Physiologist, and Chief of Bureau_.

VEGETABLE PATHOLOGICAL AND PHYSIOLOGICAL INVESTIGATIONS. ALBERT F. WOODS, _Pathologist and Physiologist in Charge, Acting Chief of Bureau in Absence of Chief_.

BOTANICAL INVESTIGATIONS. FREDERICK V. COVILLE, _Botanist in Charge_.

FARM MANAGEMENT. W. J. SPILLMAN, _Agriculturist in Charge_.

POMOLOGICAL INVESTIGATIONS. G. B. BRACKETT, _Pomologist in Charge_.

SEED AND PLANT INTRODUCTION AND DISTRIBUTION. A. J. PIETERS, _Botanist in Charge_.

ARLINGTON EXPERIMENTAL FARM. L. C. CORBETT, _Horticulturist in Charge_.

INVESTIGATIONS IN THE AGRICULTURAL ECONOMY OF TROPICAL AND SUBTROPICAL PLANTS. O. F. COOK, _Bionomist in Charge_.

DRUG AND POISONOUS PLANT INVESTIGATIONS, AND TEA CULTURE INVESTIGATIONS. RODNEY H. TRUE, _Physiologist in Charge_.

DRY LAND AGRICULTURE AND WESTERN AGRICULTURAL EXTENSION. CARL S. SCOFIELD, _Agriculturist in Charge_.

EXPERIMENTAL GARDENS AND GROUNDS. E. M. BYRNES, _Superintendent_.

SEED LABORATORY. EDGAR BROWN, _Botanist in Charge_.

J. E. ROCKWELL, _Editor_. JAMES E. JONES, _Chief Clerk_.

DRUG-PLANT INVESTIGATIONS.

SCIENTIFIC STAFF. RODNEY H. TRUE, _Physiologist in Charge_. W. O. RICHTMANN, W. W. STOCKBERGER, _Experts_. ALICE HENKEL, G. FRED KLUGH, _Assistants_.

LETTER OF TRANSMITTAL.

U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF PLANT INDUSTRY, OFFICE OF THE CHIEF, _Washington, D. C., October 30, 1905_.

SIR: I have the honor to transmit herewith and to recommend for publication as Bulletin No. 89 of the series of this Bureau the accompanying manuscript entitled “Wild Medicinal Plants of the United States.” This paper was prepared by Miss Alice Henkel, Assistant in Drug-Plant Investigations, and has been submitted by the Physiologist in Charge with a view to its publication.

Respectfully, B. T. GALLOWAY, _Chief of Bureau_.

Hon. JAMES WILSON, _Secretary of Agriculture_.