KOELLIA MONTANA LAKIX 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). 



tSynonym. — FycnuntJiemum pilosum Nutt. 



Hairy mountain-mint. 



Native perennial, 1 to 2i 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. — Llatrh .'icnriosa 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). 



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



Synonym. — Liafris sjncata AVilld. 



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. — Hoot (nonofficial). 



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



Synonym . — lAalrh 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. — Lactnca 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 canadensvi. 

 Ladies-slifjper, large yellow. See Cypripedium hirsuivm. 

 Ladies-slipper, small yellow. See Cypripediirm parviflorum. 

 Lady-fern. See Athyrium filix-foemina. 

 Lady's-glove. See Digitalis purpurea. 

 Lambkill. See Kcdmia angustifolia. 

 J^appa. See Arctium lappa. 

 Lappa major Gaertn. Same as Arctium lappa. 

 Larch, American. See Lari.v laricina. 

 Larch, black. See Larix laricina. 

 Larix americana Michx. Same as Larix laricina. 



