TRIOSTEUM PERFOLIATUM. 
Fever root. 
PLATE IX. 
"Tuas is rather a solitary plant, and though 
met with in most parts of the United States, it 
rarely, I believe, occurs in large quantities. About 
Boston it is found in several places at the borders 
of woods in rich, shady situations. Its common 
names are Fever root and Wild ipecac.* Pursh 
observes, that it is rare, and generally occurs in 
limestone soils. With us it flowers in June and 
ripens its fruit in September. 
The genus Triosteum is found in the class 
* The quaint appellation of Dr. Tinker’s weed, which has been 
bestowed on this plant, is thus gravely commented on by Poiret. 
“ Ses racines et celles de l’espece précédente passent pour éméti- 
ques ; le docteur Tinkar est le premier qui lesa mises en usage, et 
quia fait donner a cette plante par plusieurs habitans de l’Amerique 
septentrionale le nom d’ herbe sauvage du docteur Tinkar.” 
