TRILISA ODORATISSIMA TWIN-LEAF. 71 



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Trilisa odoratissima ( Walt.) Cass. Aster family (Asteraceae). 



Synonym, — Liatris odoratissima Miehx. 

 Vanilla-plant; deer's-tongue; vanilla-leaf; Carolina vanilla. 



Rather stout, native, perennial herb, 2 to 3 feet high, with fragrant leaves; in 

 pine barrens from Virginia south to Florida and Louisiana. 



Part used. — Leaves (nonoffieial). 



Trillium erectum L. Lily-of-the-valley family (Convallariaceae). 



Wake-robin; ill-seented bethroot; birthroot; aquawfiower. 



Stout, native perennial, 8 to 16 inches high, growing in rich soil in damp, shady 

 woods from Canada south to Tennessee and Missouri. 



Pari used. — Rhizome of this and of several other species of Trillium < nonoffieial). 



Triosteum perfoliatum L. Honeysuckle family ( Caprifoliaceae). 



Feverroot; horse-gentian; tinker's- weed; white gentian; wild ipecac 



Indigenous, perennial herb, 2 to 4 feet high; in rich soil in shady locations, Que- 

 bec to Minnesota, south to Alabama and Kansas. 



J 'art used. — Root (nonoffieial). 



Tritieum. See Agropyron repens. 



TriHcum repens Beauv. Same as Agropyron repens. 



Trumpetleaf. See Sarraeenia flava. 



Trumpet-milkweed. See Lac&uea canadensis. 



Trumpets. See Sarraeenia flava. 



Tsug-a canadensis ( L. ) Carr. Pine family (Pinaceae). 



Synonym. — Abies canadi rm& Miehx. 

 Hemlock; hemlock-spruce; weeping spruce; tanbark-tree. 



Indigenous tree, about 75 feet in height, in forests from Canada south to Alabama 



and Wisconsin, 

 Park used.— Bark and prepared resinous exudate (nonoffieial). 



Tulip-poplar. See Liriodendron Udipifera. 

 Tulip-tree. See Liriodendron faUipifera. 

 Tupelo gum. See Nyssa aquaJtica. 

 Tupelo, large. See Nyssa aquatica. 

 Tupelo, sour. See Nyssa ogeche. 

 Turkey-corn, See Bikukidla canadensis. 

 Turkey-pea. See Bikukulla canadensis. 

 Turm, -a aphrodisiaca Ward. Same as Turnera mwrophyUa. 



Turnera microphylla Desv. Turnera family (Turneraceae). 



Synonym. — Turnera aphrodisiaca Ward. 



Damiana. 



A small, shrubby plant, native of Lower California, Texas, and northern Mexico, 



growing in dry soil. 

 Part used. — Leaves (nonoffieial) . 



Turnip, Indian. See Arisaema triphyttum. 

 Turnip, wild. Bee Arisaema triphyUum. 

 Turtle-head. See ( 'ketone glabra. 



Tussilago farfara L. Aster family (Asteraceae). 



Colt's-foot; cough wort; horsefoot; gingerroot. 



Perennial herb, 3 to 18 inches high, naturalized from Europe; in moist places 

 along roadsides and brooks, northeastern United States and Minnesota to 

 Canada. 



Parts used. — Leaves and root (nonoffieial). 



Twinleaf. See Jefers&nia diphy&a. 



