IOWA ACADEMY OF SCIENCES. 
Ill 
Davenport and LeClaire, Scott county (W. F. Rolfs, C. B. 
Weaver and I. C. Brownlie). 
Little Rock, Lyon county (J. R. Ball). Keokuk county 
(Hursey). 
Mitchell county (Whitney). Jasper county (I. J. Mead). 
Iowa City, 1889 (T. H. McBride). Cedar county (C. B. 
Weaver). 
Polk county (Johnson). Humboldt county (Sherman). 
Roland, Story county (Kimble). Story county (Pammel and 
Combs). 
Warren county (Lang.). Marshall county (Eckles). 
Grundy county (Steelsmith). Pleasantville, 1894 (Metcalf). 
Streets of Ames, 1887 (Halsted). Muscatine, 1891 (Reppert). 
Marshalltown, 1894 (Stewart and Pammel). Keokuk (P. H. 
Rolfs). 
Cedar Rapids, 1890, (Pammel). Des Moines, 1890 (Pammel). 
Alden, Hardin county C. T. Stevens. 
Ames, 1870 (J. C. Arthur, Fourth Biennial Rep. Iowa Agr. 
College). Earliest record I can find in state. 
Ida county, 1894, first time observed (Needham). 
Kansas. — McPherson, Sumner, Riley -and Butler counties 
Hitchcock). All through the state as far west as Sherman 
county. (Hitchcock). 
Introduced within three years and rapidly taking possession 
of dry places along the railroad. (Smith, Addition to the Flora 
of Kansas, Transactions Kansas Academy of Science, Vol. 
XIII, p. 97). 
Massachusetts. — Near Hovey’s garden, Cambridge, 1863-4. 
(Murray). 
Cambridge, waste grounds and roadsides. (Gray, Manual of 
Botany, 5th edition, p. 281). 
Michigan. — A bad weed, spreading and becoming rapidly 
introduced everywhere along lines of railroads, etc. (Beal and 
Wheeler, Michigan Flora, 13th annual report of Secretary, 
Michigan State Board Agr., pp. 180, 108). Durand (J. M. 
Fitch). 
Cambridge (Mrs. F. A. Dewey). Decatur (Mrs. F. A. 
Dewey). Erie (A. J. Keeney). Union City (D. V. Groesbeck). 
Note.— Pammel Eep., Iowa, Agrl. Soc., 1893, p. 449. Thirteenth Biennial Eep. Iowa 
Agrl. College, 1887-1889, p. 45. Bull. No. 26, Iowa Agrl. College Experiment Station. 
