. Bulletin. 1901-13. Agriculture; Agriculture. 38 AMERICAN MKDKMNAL LKAVKS AND HERBS. The broad-leaved gum plani {(/riufklin :i(iu<irrosa) iw very f^imilar to (i. rofmsfa, except that it is smaller and loss gummy in apjiearanre. It is more Pi)ariiigly branched near the top and the branches seem more reddish. The leaves are also clasping, but they are longer, about 2 inches in length, and broader, thinner in texture and not rigid, and more prominently toothed. The smaller flower heads are generally longer than broad and have narrower involucral scales, the recurved lips of which are lonirer
. Bulletin. 1901-13. Agriculture; Agriculture. 38 AMERICAN MKDKMNAL LKAVKS AND HERBS. The broad-leaved gum plani {(/riufklin :i(iu<irrosa) iw very f^imilar to (i. rofmsfa, except that it is smaller and loss gummy in apjiearanre. It is more Pi)ariiigly branched near the top and the branches seem more reddish. The leaves are also clasping, but they are longer, about 2 inches in length, and broader, thinner in texture and not rigid, and more prominently toothed. The smaller flower heads are generally longer than broad and have narrower involucral scales, the recurved lips of which are lonirer and more slender. (Fig. 29.) CoUcction, prices, otid uses.—The leaves and flowering toi)s of both species of Grin- dclia are official in the United States Pharmacopa'ia, and should be collected about the time that the flowers have come into full bloom. The price ranges from about 5 to 10 cents a pound. \\'hile both spe- cies are official, the leaves and tops of Grindelia squar- rosd, being more prevalent, are generally used. The odor of grindelia is balsamic and the taste resinous, sharply aromatic, and slightly bitter. The drug is sometimes used in asthmatic and similar af- fections, as a stomachic, tonic, and externally in cases of poisoning by poison ivy. CANADA FLEABANE. Leptilon canadense (L.) Britton. Synonym.—E rigeron cfinndensis L. Other common names.— Erigeron, h o r s e w e e d , mare's-tail, Canada erig- eron, butterweed, bitter- weed, cow's-tail, colt's-tail, fireweed, bloodstanch, hogweed, prideweed, scabious. Habitat and range.—Canada fleabane is common in fields and waste places and along roadsides almost throughout North America. It is also widely distributed as a weed in the Old World and in South America. Description.—The size of this weed, which, is an annual, depends upon the kind of soil in which it grows, the height varying from a few inches only to sometimes 10 feet in favorable soil. The erect stem is bristly hairy or sometimes smooth, and in
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