TUSSILAGO — COLTSFOOT. 



17a 



.Preparations. — Of E. iiorfoliatum : Estractuni cupatorii fluidum— lluid 

 extract of eupatoriiim~t'/u7L.v/ States Pliarmacopivia. The iiii'usiou uiul 

 decoction are efficient preparations, and are )uost comniouly eiiii)loy('d. 

 Of E. purpureum there are coinTnercial flnid extracts, but, as with the other 

 species, it is most commonly adniinistei'ed in decoction or infusion. 



Medical Properties and Ufies. — Of domestic remedies few are better 

 kno\ra or more largely used than boneset. It is tonic, diaphoretic, emetic, 

 and cathartic, the ditierent ellects dependinij; largely upon the size of the 

 dose and mode of administra- 

 tion. The infusion, taken cold 

 in moderate doses, is tonic, and, 

 is employed in debility of tho 

 digestive organs and in conva- 

 lescence. Taken warm in lai'ge 

 doses, the infusion or decoction 

 produces copious diaphoresis, 

 and is cmiiloycd in the acute 

 stages of catarrhal aflections and 

 in fevers, especially those of an 

 intermittent or remittent type. 

 In still larger doses the warm 

 infusion or decoction i^roduces 

 cmesis or catharsis ; these effects 

 are, however, selch^m sought. 



E. purpureum, or gravel-root, 

 is said to be diuretic and to have 

 been employed in urinary aiiec- 

 tions, but it has not attained an 

 established reputation and is 

 seldom used. 



TUSSILAGO.— Coltsfoot. 



Tussilago Farfara Linne. 

 —ColtxfooL 



7A'.vc/vyj<io».— -Heads radiate, many flowered ; ray-llowers jiumerous, 

 narrowly ligulate, pistillate, fertile, in many rows, bright yellf)w ; tubular 

 disic-flowers few, staminate. Scales of the involucre oblong, obtuse, nearly 

 in a single row. Receptacle flat, naked. Style abortive in the disk-flow- 

 ers, 2-cleft in the ray-flowers, the branches neai'lv round. Achenia of the 

 raj'-flowers fiyliudrical-oblong, smooth ; in tho disk, abortive. Pappus 

 capillary, copious in the ray-flowers, in a single series in the disk. 



A perennial herb, with a rathev thick rhizome. Stems simple, often 

 growing in tufts, erect, about 6 inches high, woolly and scaly, 1-flowered. 

 Leaves all radical, appearing after the flowers, cordate, angular-toothed,. 



FlO. 133. — Tussilago I'uifur.i. 



