26 
Parts used.—At the time of flowering the leaves and tops are collected 
for medicinal purposes and are dried in the usual manner. The odor 
of tansy is strongly aromatic and the taste bitter. In drying, tansy 
loses about four-fifths of its weight. 
Tansy is employed in derangements of women, and has stimulant 
and tonic properties. It is also used for expelling worms. This drug 
is poisonous and has been known to produce fatal results. 
o 
ain 
ceive 
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Fic. 16.—Tansy ( Tanacetum vulgare L.). Fie. 17.—Gum plant (Grindelia robusta Nutt.). 
Imports and prices.—A bout 30,000 pounds of tanacetum or tansy are 
imported annually. The price paid per pound ranges from 3 to 6 cents. 
GUM PLANT. 
Grindelia robusta Nutt. 
Range.—The gum plant (fig. 17) occurs in the States west of the 
Rocky Mountains. 
_ Deseription.—The entire plant is covered with a resinous ee 
_ which gives it a gummy, varnished appentaneys ¥ whence its common 
= = — plant, —— 
