ASTER.ACEAE: EUPATORIEAE 



169 



1. Eupatorium. 920. 



Leaves mostly verticillate in 3's-6's the upper sometimes opposite, 

 flowers mostly pink or purple. 

 Inflorescence depressed, flat topped. 1. E. maculatum. 



Inflorescence pyramidal, the top rounded, 2. E. purpurea. 



Leaves mostly opposite, some of the lower sometimes verticillate, 

 flowers white or blue. 

 Leaves perfoliate, 4. E. perfol latum. 



Leaves not perfoliate. 



Leaves narrow at the base, gradually tapering to the petiole. 



3. E. altissiumum. 

 Leaves broad at the base abruptly narrowed to the petiole some- 

 times cordate. 5. E. ageratoides. 



Spotted Joe-pye Weed. 



1. Eupatorium maculatum L. 

 Eupatorium rydbergll Britton. 



Moist ground in the eastern part of tire state. 

 Nemaha; Valentine. 



2. Eupatorium purpureum L. Joe-pye or Trumpet Weed. 

 In moist soil mostly in the eastern part of the state. Bellevue; 

 Dakota County; Dismal River; Long Pine; 

 County; Squaw Canon. 



3. Eupatorium altissimum L. 

 In dry soil in the eastern part of the state. 

 Bellevue; Lincoln; Red Cloud; Weeping Water. 



4. Eupatorium perfoliatum L. Common Thorougnwort. 

 Common in wet soil over most of the state. Anselmo; Dismal River; 

 Franklin; Endicott; La Platte; Long Pine; Nebraska City; Plainview; 

 Royal; Turkey Creek; Valentine. 



5. Eupatorium ageratoides L. f. 

 Eupatorium urticaefolium Reichard. 



In woods in the eastern part of the state. Cams; Crete; Long Pine; 

 Lincoln; Nebraska City. 



Burnett; Ft. Niobrara; 



Paddock; Richardson 



Tali Thoroughwort. 



Crete; Grand Island; 



2. Coleosanthus. 924. 



1. Coleosanthus grandiflorus (Hook.) Kuntze. 

 In the southern and western part of the state. 

 Rock; Red Cloud. 



Banner County; Guide 



3. Kuhnla. 924. 



Pubescence minute, leaves sparingly dentate or entire, heads 10 mm. 

 or less high. 1- K. eupatorloides. 



More pubescent, leaves sharply serrate, heads over 10 mm. high. 



2. K. glutinosa. 



False Boneset. 

 Callaway; Crete; Lincoln; Loup 



1. Kuhnla eupatorloides. 



In dry soil over most of the state 

 City; Nebraska City. 



2. Kuhnla glutinosa Ell. 



Kuhnla eupatorloides var. corymbulosa T. & G, 

 In dry soil all over the state. Banner County; Lincoln; Long Pine; 



