TRILISA ODORATISSIMA TWINLEAF. 71 



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



Si/nuni/iii. — Liutrix odonitisHiina Michx. 



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. , 



Purf used. — Leaves ( nonofficial ). 



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



Wake-robin; ill-scented bethroot; birthroot; squawflovver. 



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

 woods from Canada south to Tennessee ancl Missouri. 



I'drt used. —Rhizome of this and of several other species of Trillium (nonofRcial). 

 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 shadv locations, Que- 

 bec to Minnesota, south to Alaban^a and Kansas. 



Fart used. — Root (nonoflicial) . 

 Triticum. See Agropyron repens. 

 Tritlciuii repens Beauv. Same as Agropyron repens. 

 Trumpetleaf. See Sorracenia flara . 

 Trumpet-milkweed. See Laduc.a canadensis. 

 Trumpets. See Sarracenia flava. 



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



Siiuoiiyin. — Abies canadensis Michx. 



llemloc-k; hemlock-spruce; weeping spruce; tanbark-tree. 



Indigenous tree, about 7o feet in height, in forests from Canada south to Alabama 

 and Wisconsin. 



Pails used. — Bark and prepared resinous exudate (nonoflicial). 



Tulip-poplar. See Liriodendron tuUpifera. 



Tulip-tree. See Liriodendron tulipifera. 



Tupelo gum. See Nyssa aqucdic.a. 



Tupelo, large. See Nyssa aquatica. 



Tupelo, sour. See Nyssa ogeche. 



Turkey-corn. See Bikutulla canadensis. 



Turkey-pea. See Bikukulla canadensis. 



Turnera aphrodisiaca Ward. Same as Turnera microphylla. 



Turnera microphylla Desv. Turnera family ( Turneraceae ) . 



iSynonytn. — Turnera aphrodisiaca Ward. 



Damiana. 



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

 growing in dry soil. 



Part used. — Leaves (nonoflicial) . 

 Turnip, Indian. See Arisaema triphyllum. 

 Turnip, wild. See Arisaema IripJiyllum. 

 Turtle-head. See Chelone glabra. 



Tussilago farfara L. Aster family (Asteraceae). 



Colt's-fuot; coughwort; horsefoot; gingerroot. 



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



along i-oadsides and brooks, northeastern United States and Minnesota to 



Canada. 



Parts used. — Leaves and root (nonoflicial). 

 Twinleaf. See Jeffersonia diphylla. 



