COMPOSITAE (COMPOSITE FAMILY) 471 



broad, with twelve to fifteen pistillate and fertile bright golden 

 rays, three-toothed at tips ; disk florets perfect and fertile, brown- 

 ish yellow ; involucre about one-half inch high with lance-shaped, 

 spreading, hairy bracts. Achenes of the disk florets narrowly 

 obovate, flattened, hairy, broadly winged, with a pappus of 

 two needle-like awns ; those of the rays thickened, rough- 

 wrinkled and usually without awns or wings. (Fig. 327.) 



Means of control 



Prevent seed production. In grain fields the weed seedlings may 

 be harrowed out in spring when the crop is but a few inches above 

 the ground. Plants which survive this 

 treatment may profitably be hand-pulled, 

 the increased returns paying for the labor. 

 Grasslands should be harvested before 

 the first flowers mature, and all waste 

 places receive attention. 



LANCE-LEAVED TICKSEED 

 Coreopsis lanceoldta, L. 



Native. Perennial. Propagates by seeds. 

 Time of bloom : May to August. 

 Seed-time: June to September. 

 Range: Western Ontario to Virginia and 



Florida. Locally in the Eastern States. 

 Habitat: Meadows, fence rows, roadsides, 



and thickets. 



A plant often cultivated because of the 

 showy beauty of its flowers, and freely 

 escaping. Stem one to two feet in height, 

 branching from the lower part, smooth, or 

 slightly downy near the base. Leaves op- 

 posite, two to six inches long, lance-shaped 

 or the lowest spatulate, tapering to petioles 



which partly clasp the stem; upper ones FIQ 328 Lance- 

 sessile, all entire, with rough edges. Heads leaved Tickseed (Coreopsis 

 solitary, about two inches broad, on slen- lanceolata). x 1. 



