464 COMPOSITAE (COMPOSITE FAMILY) 
Fie. 324.— Purple Cone-flower 
(Brauneria purpurea). X t. 
Means of control 
The range of this weed is being 
rapidly extended by the agency of 
baled hay and grass seeds. It is a) 
handsome~ plant, two to four feet 
tall, with slender, rough-hairy stem, 
usually without branches. Leaves 
dark green, three to eight inches in 
length, alternate or the lower ones 
opposite, lance-shaped, hairy, long- 
pointed, the lower ones five-ribbed, 
toothed, and petioled, the upper ones 
entire and sessile. Heads large, soli- 
tary, with a conical disk having deep 
purple, tubular, perfect, and fertile 
florets surrounded by twelve to 
twenty large, drooping rays which 
are pistillate but sterile; these are 
dull magenta-red, about two inches 
long, notched at their tips. Bracts 
of the involucre imbricated in three 
to five rows, rather soft and lax, 
nearly linear, and _ finely hairy. 
Achenes short and thick, the pappus 
a toothed crown. (Fig. 324.) 
Tf the infestation is new and the area not too large, it will pay to 
rid the soil of the perennial roots by hand-pulling the plants before 
the development of seed. Rankly infested ground requires to be 
put under cultivation. 
PRAIRIE CONE-FLOWER 
Lépachys columnaris, T. & G. 
(Ratibida columndris, D. Don.) 
Other English names: Long-headed Cone-flower, Cone-headed 
Daisy. 
Native. Perennial. Propagates by seeds. 
Time of bloom: May to August. 
