46 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



Marsh-gentian. See Gentiuiut riUomi. 

 Marshmallow. See Althaea officinalis. 

 Marsh-rosemary. See Limonium carolinianum. 

 Marsh-trefoil. See Menyauthes trifoUata. 

 Maruta cotula DC. Same as Anthem ii^ colitla. 

 Masterwort. See Angelica atropurpurea and Heracleum lanatum. 

 May-apple. See Podophylhmi peltatum. 

 Mayflower. See Epirjaea repent. 

 May-poi3s. See Passiflora incarnata. 

 May thorn. See Crataegus oxyacantha. 

 Mayweed. See Anthemis cotula. 

 Meadow-clover. See Trifoliimi pratense. 

 Meadow-fern. See Comptonia peregrina. 

 Meadowpride. See Frasera caroUnemis. 

 Meadow-scabish. See Ai^ter puniceus. 

 Meadowsweet, pink. See Spiraea tomentosa. 

 Mealy-tree. See Viburnum dentatum. 

 Melilot, yellow. See Melilotus officinalis. 



]y^^lotus officinalis (L. ) Lam. Pea family (Fabaceae). 



^ Yellow melilot; yellow sweet clover. 



Annual or biennial herb, 1 to 3 feet high, introduced from Europe, and occurring . 

 in waste places throughout the eastern United States. 



Parts used. — Leaves and flowering tops (nonofficial). 



Melissa. See Melissa officinalis. 



Melissa officinalis L. Mint family (Menthaceae). 



Melissa; balm; lemon-balm; gar<len-balm; sweet balm. 



Perennial herb, 10 to 20 inches high, naturalized from Europe, and growing in 

 waste places, fields, and woods from Maine to Georgia. 



Parts used. — Leaves and tops (official in U. S. P. 1890). 

 Menispermum. See }fenispermmn canadense. 



Menispermum canadense 1^. Moonseed family (Menispermaceae). 



Menispermum; yellow parilla; Canada moonseed; Texas ■sarsaparilla; vine-maple. 

 Native, perennial, woody climber, found in woods along streams fi-om Canada 



to Georgia and Arkansas. 

 Parts used. — Rhizome and roots (official in U. S. P. 1890). 



^Mentha piperita. See Mentha piperita L. 



Mentha piperita L. Mint family (Menthaceae) . 



Mentha piperita; peppermint. 



Aromatic, perennial herb, 1 to 2 feet high, naturalized from Europe, and occur- 

 ring in damp places from Nova Scotia to jNIinnesota, south to Florida and Ten- 

 nessee. Cultivated principally in ^Michigan and New York. 

 Parts used. — Leaves and flowering tops, and the oil of peppermint distilled from 

 these, are official. 



Mentha spicata L. Mint family (Menthaceae). 



Synonym. — Mentha rlridls L. 



^lentha viridis; spearmint. 



Aromatic, perennial herb, 1 to 2 feet high, naturalized from Europe, and grow- 

 ing in moist fields and waste places from Nova Scotia to Utah, south to Florida 

 and Kansas. Also cultivated. 



Parts ?t.s<'d.— Leaves and flowering tops, and the oil of spearmint distilled from 

 these, are official. 



