Artemisia 



COMPOSITAE 



993 



50 



Map 2175 



Artemisia Absinthium L 



"TO 



Map 2177 



Artemisia annua L 



common in waste places. I have found it only five times, and then only a 

 specimen or two at a place. 



N. S. to B. C, southw. to N. J. and Calif. 



3. Artemisia annua L. Sweet Wormwood. Map 2177. Local through- 

 out southern Indiana and there are reports of it from Lake and Mont- 

 gomery Counties. A very common weed half way up the slope of the bank 

 of the Ohio River along almost the entire length of the river in this state. 

 I believe that it will become an obnoxious weed in many places in the 

 southern part of the state. It prefers moist, muddy banks and dry, sandy 

 soils. Frequent about habitations. 



Nat. of Asia; N. B., Ont. to Calif., southw. to Va. and Tenn. 



4. Artemisia caudata Michx. Map 2178. This species requires a dry, 

 sandy soil and is usually found in the open on sandy knolls, on open sand 

 dunes, on slopes bordering lakes and streams, and rarely in a prairie 

 habitat. It is restricted to the lake area and is very local except in the dune 

 area where it is frequent. This species is one of the hosts of the parasitic 

 plant, Orobanche fasciculata which I have found only at Pine, Lake County. 



Que., Ont. to Man., southw. to Fla. and Tex. 



5. Artemisia gnaphalodes Nutt. (Artemisia ludoviciana of authors 

 in part, not Nutt.) Map 2179. Reported by Peattie as rare in the Calumet 

 region. In 1923 I found a colony about 4 feet square along the railroad 

 about 2 miles north of Rochester, Fulton County. In 1930 I found it scat- 

 tered over a large area in a fallow field in Newton County about 6 miles 

 southwest of Fair Oaks. I have not been able to check its persistence at 

 either of these locations, but I believe it is established at the Newton 

 County location. In 1935 I found a small colony near the top of the 160 

 foot bluff of the Wabash River at Merom, Sullivan County. 



Ont. to Alberta, southw. to Tex. and Mex. ; introduced eastw. to N. H. 

 and Del. 



