162 



THE INDIANA WEED BOOK. 



cut-lobed segments. Heads numerous, short-stalked on the ends of the 

 branches; involucre bell-shaped, its S-10 oblong, purplish bracts in one 

 row; receptacle flat, chaffy; rays few, short, inconspicuous; disk-flowers 



numerous, dull yellow. Achenes 4-angled, 

 wider above, hairy, crowned by a ring of short 

 hair-like brownish bristles. (Fig. 121.) 



Common along roadsides, banks of 

 streams, railways and borders of fields, 

 especially in gravelly or clayey soils. 

 Jime-Oct. A migrant from the west 

 brought in by railways and seeds in hay. 

 Readily known by the large pellucid 

 glands of the leaves and bracts which ex- 

 hale a very disagreeable odor. In many 

 places it seems to have taken the place of 



Fig 121. Short ray-flower on left; the COllimon dog-fennel (A)lt]l€mis COtula 

 disk-flower on right. (Afcer Bntton 



and Brown.) L/L The odor of the latter was bad 



enough but that of the foetid marigold is infinitely more disgusting. 

 Remedies: mowing while in flower; cultivation, when practicable, 

 of the land infested. 

 128. Tanacetum vulgare L. Tansy. (P. I. 3.) 



Stems stout, unbranched, 1-3 feet high ; leaves twice divided into 

 linear or oblong, cut-toothed segments. Heads numerous, small, in dense 

 flat-topped terminal clusters; involucre saucer-shaped, its oblong bracts 

 in several overlapping rows; receptacle flat, naked; flowers yellow, all 

 tubular. Achenes angled and ribbed, with flat top and a crown or pappus 

 of 5 short scales. (Fig. 122.) 



Frequent in dense clusters along fence- 

 rows, embankments, waysides, etc. July- 

 Sept. An ill-smelling herb, formerly much 

 cultivated in gardens but escaped and 

 spreading in many places. Remedies : suc- 

 cessive mowings or grubbing ; cultivation. 



For sale the leaves and tops should be 

 collected when in flower, and carefully 

 dried. The infusion is bitter and acrid 

 and is used as a stimulant, tonic, vermifuge, 

 etc. When taken in overdoses the oil of 

 tansy is poisonous. About 40,000 pounds 

 are imported annually, the price ranging 

 from 3 to 6 cents per pound. Tn England 

 it was formerly thought that tansy laid to 

 soak in buttermilk for nine days would "m 

 fair." 



^$p5^ 



Fig. 122. a, disk-flower: &,ray-flcwer; 



r, fruit. (After Watson ) 



ke the complexion von 



