416 COMPOSITAE (COMPOSITE FAMILY) 



Means of control 



In crops where thorough and late cultivation may be practiced, 

 this weed is not difficult of suppression ; but in tobacco fields, 

 where care must be exercised in order to keep the large lower 

 leaves of the crop uninjured, late tillage is a danger, and hand- 

 pulling is the only practicable way of destroying late-blooming 

 plants before the development of seed. 



JOE-PYE WEED 

 Eupatorium purpureum, L. 



Other English names: Trumpetweed, Feyerweed, Purple Boneset, 



Queen-of-the-Meadow, Gravel-root, Kidney-root. 

 Native. Perennial. Propagates by seeds. 

 Time of bloom : August to September. 

 Seed-time: September to November. 



Range: New Brunswick to Manitoba, 



southward to Florida and Texas. 

 Habitat: Damp meadows, moist woods 

 and thickets, sides of streams and 

 ditches. 



Joe Pye was an Indian "herb doctor" 

 of early days in New England, who is 

 said to have performed many marvelous 

 cures, mostly with decoctions of this 

 herb. However that may be, its woody, 

 fibrous, blackish roots, gathered in au- 

 tumn and carefully dried, are still sal- 

 able in the drug market for two to four 

 cents a pound. 



Stem round, smooth or sometimes 

 finely grooved, slender for its height of 

 three to ten feet, usually purple, simple 

 or with a few branches at the top. 

 Leaves arranged in whorls of three to 

 six, long-ovate, thin, smooth except for 



a slight hairiness of the veins beneath, 

 FIG. 291. Joe-Pye Weed ,, , x , , , 



(Eupatorium purpureum). finely scallop-toothed, tapering to short, 

 x J. slim petioles. Heads small, in rather 



