KOELLIA MONTANA LARIX AMERICANA. 41 



Koellia montana (Michx.) Kuntze. Mint family ( Menthaceae ) . 



Synonym. — Pycnanthemum montanum Michx. 



Thin-leaved mountain-mint, 



Native perennial, 2 to 3 feet high, found in woods from southern Virginia to 

 Georgia and Alabama. 



Part used. — Herb (nonofficial) . 

 Koellia pilosa (Nutt. ) Britton. Mint family (Menthaceae). 



Synonym. — Pycnanthemum pilosum Nutt, 



Hairy mountain-mint. 



Native perennial, 1 to 2^ feet high, occurring in prairies and dry woods from 

 Ohio to Georgia, west to Missouri and Arkansas. 



Part used. — Herb (nonofficial). 



Lacinaria scariosa (L. ) Hill. Aster family ( Asteraceae ). 



Synonym. — Liatris scariosa Willd. 



Blue blazingstar; large button-snakeroot; rattlesnake-master; gay-feather; 

 devil 's-bit. 



Native, perennial herb, 4 to 5 feet high, found in dry woods and sandy fields 

 from Maine to Florida, west to Texas and Nebraska. 



Part used. — Root (nonofficial). 

 Lacinaria spicata (L. ) Kuntze. Aster family (Asteraceae). 



Synonym. — Liatris spicata Willd. 



Dense button-snakeroot; colic-root; prairie-pine ; gay-feather ; rattlesnake- 

 master; corn-snakeroot; backache-root. 



Native, perennial herb, 2 to 5 feet high, in moist places from Massachusetts to 

 Florida, west to Wisconsin and Arkansas. 



Part used. — Root (nonofficial). 

 L.acinaria squarrosa (L.) Hill. Aster family (Asteraceae). 



Synonym. — Liatris squarrosa Willd. 



Scaly blazingstar; colic-root; rattlesnake-master (in the South). 



Native, perennial herb, 2 to 3 feet high, in dry soil, Ontario to Florida, west to 

 Nebraska and Texas. 



Part used. — Root (nonofficial). 

 Lactuca canadensis L. Chicory family ( Cichoriaceae) . 



Synonym. — Lactuca elongata Muhl. 



Wild lettuce; tall lettuce; wild opium; trumpet-milkweed. 



Annual or biennial plant, 3 to 10 feet in height, native in moist, open places, 

 British America south to Georgia and Louisiana. 



Part used. — Herb (nonofficial) . 

 Lactuca elongata Muhl. Same as Lactuca canadensis. ' 

 Ladies-slipper, large yellow. See Cypripedium hirsutum. 

 Ladies-slipper, small yellow. See Cypripedium parviflorum. 

 Lady-fern. See Aihyriurn filix-foemina. 

 Lady's-glove. See Digitalis purpurea. 

 Lambkill. See Kalmia angustifolia. 

 Lappa, See Arctium lappa. 

 Lappa major Gaertn. Same as Arctium lappa. 

 Larch, American. See Ljorix laricina. 

 Larch, black. See Larix laricina. 

 Larix americana Michx. Same as Larix laricina. 



