HOFFMANN: FLORA OF BERKSHIRE COUNTY. 341 
COREOPSIS. 
C. TiNCTORiA Xutt. — Occasionally persistent about gardens or on 
dumps. Pittsfield; Stockbridge. 
CREPIS. Hawk's Beard. 
C. CAPiLLARis (L.) Wallr. — Established in a meadow, Stockbridge. 
Probably introduced w4th grass seed. 
ERECHTITES. Fireweed. 
E. hieracifolia (L.) Raf., var. praealta (Raf.) Fernald. — (E. 
hieracifolia Man. ed. 7 in part; vid. Rhodora, 19: 27, 1917.) 
Recent clearings, particularly after fires, and shaded ledges; com- 
mon. 
Upper leaves attenuated to base or petioled. In the type the leaves 
scarcely decrease in size into the inflorescence. 
ERIGERON. Fleabaxe. 
E. annuus (L.) Pers. Daisy Fleabane. — Old fields and waste 
places; common. 
E. canadensis L. Horse-weed. — {Leptilon canadense 111. Fl. 
ed. 2.) 
Waste places, cultivated ground, old fields and dry hillsides ; common. 
E. philadelphicus L. — Borders of swamps and moist woods; 
common. 
E. pulchellus Michx. Robin's Plantain. — Borders of woods 
and grassy banks; common. 
E. ramosus (Walt.) BSP. Daisy Fleabane. — Fields and road- 
sides; common. 
var. discoideus (Robbins) BSP. — With the type; frequent. 
var. septentrionalis Fernald & Wiegand. — Fields; frequent. 
Stem and loa\es si)aringly iiispidulous or nearly glabrous instead of 
cinereous-strigose (vid. Rhodora, 15: GO, 1913). 
EUPATORIUM. Thorougiiwokt. 
Key to Kupatoriuin purpureum, K. macuhitum, and K. falcatum. 
a. Florets 9 to 15 (rarely 8 to 20); inflorescence or its divisions flat-topped; 
stem speckled, if not obscured by too deep purple, not glaucous. 
E. maculalum. 
