COMPOSITAE (COMPOSITE FAMILY) 485 
of the involucre lance-shaped, pointed, hairy on both sides, reflexed. 
Achenes small, brown, top-shaped nutlets, hairy at the base and 
crowned with a half-dozen or more bristly awns. (Fig. 336.) 
Means of control 
No composite flower, however beautiful, should be permitted 
to give its seeds to the wind’s will. In gardens the blossoms should 
be clipped as they fade, and where the plants “blanket”’ the fields 
they should feel the scythe or the mowing-machine blades at sight 
of the first gay flower. For destruction of the perennial roots 
the ground requires to be put under cultivation. 
FETID MARIGOLD 
Dyssodia pappésa, Hitche. 
(Boébera papposa, Rydb.) 
Other English names: Yellow Mayweed, False 
Mayweed, Yellow Dog-fennel, Stinkweed. 
Native. Annual. Propagated by seeds. 
Time of bloom: July to October. 
Seed-time: August to November. 
Range: Ontario and Ohio to Minnesota and Ne- 
braska, southward to Texas, New Mexico, and 
Arizona. . 
Habitat: Fields, roadsides, and waste places. 
A vile weed, which is gaining ground in the 
Eastern States, being established in several places 
where it was brought in western hay, of which 
the refuse was spread on the fields. 
Stem six to eighteen inches tall, erect, smooth, 
dotted with pellucid glands, much branched, and 
very leafy. Leaves but an inch or two long, 
opposite, sessile, pinnately divided into narrow, 
spatulate, toothed segments, and also dotted 
with glands which exhale an offensive, fetid 
odor. Heads numerous, terminal, on short pe- 
duncles, dull yellow, but little more than a Bey penane a 
quarter-inch broad; disk florets perfect and (Dyssodia pap- 
fertile; rays few and short, pistillate; involucre 70s2). Xt 
