PLANTS OF MANHATTAN AND BLUE RAPIDS 1 23 



Artemisia dracunculoides Pursh. Narrow-leaved Wormwood. 



Roadsides. Occasional. Aug. 20. 

 Artemisia biennis Willd. 



Riverbanks. Occasional. Sept. 10. 

 Artemisia gnaphalodcs Nutt. Prairie Cud.-weed. 



Prairies. Common. Aug. 30. 

 Erechtites hieracifolia (L.) Raf. Fireweed. 



Manhattan. Wet wooded banks. 

 Mesadenia atriplici [folia (L.) Pale Indian Plantain. 



Woods. Frequent. 

 Mesadenia tuberosa (Nutt.) Britton. Indian Plantain. 



Prairies. Common. June 15 (17). 

 Senecio Balsamitae Muhl. Groundsel. 



Prairies. Common. May 5 (4). 

 Arctium minus Schk. Burdock. 



Roadsides or around barnyards. Frequent. July 20. 

 Carduus lanceolatus L. Common or Bull Thistle. 



Roadsides and waste places. Occasional. July 30. 

 Carduus altissimus L. Tall Thistle. 



Roadsides, fields and thickets. Common. Aug. 15. 

 Carduus undulatus Nutt. Prairie Thistle. 



Prairies and hillsides. Common. June 25 (26). 

 Centaurea Cyanus L. Corn-Flower. 



Occasionally escaped from cultivation. 

 Centaurea nigra L. Black Knapweed. 



Once collected in alfalfa field at Blue Rapids. 

 Of the species in the present list the following are additional 

 to those listed by Hitchcock for the three counties, those new to 

 the State being marked with an asterisk 

 Mars ilea vestita 

 Sagittaria ambigua 

 Sorghum Halpense. 

 Muhlenbergia sobolifera 

 *Bromus inermis 

 *Bromus tectorum 

 *Bromus racemosus. 

 *Bromns arvensis 

 Agropyron repens 

 Rumex obtusifolius 

 Polygonum longistylum 



