. The Indiana weed book. Weeds. Fig. 121. Short ray-flower on left; disk-flower on right. (After Britton and Brown.) cut-lobed segments. Heads numerous, short-stalked on the ends of the branches; involucre bell-shaped, its 8-10 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. June-Oct. A migrant fro
. The Indiana weed book. Weeds. Fig. 121. Short ray-flower on left; disk-flower on right. (After Britton and Brown.) cut-lobed segments. Heads numerous, short-stalked on the ends of the branches; involucre bell-shaped, its 8-10 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. June-Oct. A migrant from the 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 the common dog-fennel (Anthemis cotula 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. Tanacettjm 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; 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1912
