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 
Coreépsis lanceolata, 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 Tong, lance-shaped 
or the lowest spatulate, tapering to petioles 
which partly clasp the stem; upper ones 
. : F Fig. 328.— Lance- 
sessile, all entire, with rough edges. Heads leaved Tickseed (Coreopsis 
solitary, about two inches broad, on slen- lanceolata). Xi. 
