70 TWELFTH ANNUAL REPORT. 



EUPATORIUM, Tourn. Thoroughwort. Boneset. 



E. piirpureum, L. Joe-Pye Weed. Trumpet-weed. 

 Common throughout the state. 



E. purpureum, L., var. luaculatuin, Darl.* Joe-Pye Weed. Trum- 

 pet-weed. 

 Frequent, or common, throughout the state. 



E. altissiiuuni, L. Tall Boneset. 



Lapham. Goodhue county, Sandberg ; Blue Earth county, Leiberg, Oedge. 

 Bare. South. 



E . perfoliatiim, L. Thoroughwort. Boneset. 



Common, or frequent, through the south half of the state ; upper Mississippi river, 

 Garrison ; less frequent farther north to the lake of the Woods, Dawson. Well known 

 as a bitter tonic. 



E. serotinum, Michx. Thoroughwort. Boneset. 



Lapham, Todd county (frequent), Upliam; Martin county, and Emmet county, 

 Iowa (.common), Cratty, South, 



E. ageratoides, L. f. White Snake-root. 

 Common, or frequent, throughout the state. 



PETASITES, Tourn. (Nardosmia, Cass.) Sweet Coltsfoot. 



P. sag"ittata, Gray.f (N. sagittata, Hook.) Sweet Coltsfoot. 



Red river valley near Saint Vincent (in a "low damp thicket ; in full bloom in the 

 first week of May ; seed nearly ripe, June 4; flower with an odor like that of Crataegus, 

 white, tinged with purple"). Dawson; also on Roseau river, Scott. Rare. Northwest. 



[P. palmata. Gray, (N. palmata, Hook.) probably also occurs in Minnesota.] 



TUSSILAGO, Tourn. Coltsfoot. 



T. Farfara, L. Coltsfoot. "Ginger-root.'" 



Northeastward, "much used as a cough medicine," C'torfc; lake Pepin, Mi^s Man- 

 ning. 



ADENOCAUIjON, Hook. Adenocaulon. 



A. bicolor, Hook. Adenocaulon. 



Stearns county. Garrison. Rare. North. 



ASTER, Tourn. Starwort. Aster. 



A. corymbosus. Ait. Aster. 



Hennepin county, Boberis. [North of lake Superior, .4 gctsste.] Infrequent. 



A. macrophyllus, L. Large-leaved Aster. 



Abundant north of lake Superior, Roberts; lake of the Woods, Dawson ; upper 



* EUPATORIUM PUKPUBEUM, L , var. MACULATUM, Darl. Common in open ground, 

 3 or 4 feet high, often roughish-pubescent : stem commonly purple, striate or sulcate ; 

 leaves somewhat rugose, 3— 5-nate : Inflorescence more compact and depressed. . . 

 . . The most widely distributed form. Oray's Synoptical Flora of N . A. 



+ PETASITES SAGITTATA, Gray. Lcaves from dcltoid-oblong to reniform-hastate, 

 from acute to rounded-obtuse, repand-dentate, very white-tomentose beneath, when 

 full grown 7 to 10 inches long : heads short-racemose, becoming corymbose : ligules 

 equalling or shorter than the disk. Gray's Synoptical Flora of N. A. 



