42 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



liarix laricina (Du Roi) Koch. Pine family (Pinaceae). 



Synonym, — Larix americuna Michx. 



Tamarack; American larch; hackmatack; black larch. 



A tall, slender tree, native in swampy woods and moist places from Canada 

 south to New Jersey, Indiana, and Minnesota. 



Part used, — Bark (nonofficial). 

 Lark-heel. See Delphinium consolida. 



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Larkspur, field-. Bee Ddphirnum consolida. 

 Larkspur, tall. See under Delphinium consolida. 

 Laurel, broad-leaved. See Kalmia latifolia. 

 Laurel, deer-. See Rhododendron maximum. 

 Laurel, great. See Rhododendron maximum. 

 Laurel, mountain-. See Kalmia latifolia. 

 Laurel, narrow-leaved. See Kalmia angustifoUa. 

 Laurel, rose-. See Rhododendron maximum. 



Laurel, sheep-. See Kalmia angustifoUa and A', latifolia. 

 Laurel, spurge-. See Daphne mezereum. 



Laurel, swamp-. See Magnolia rirginiana. 



Lauras benzoin L. Same as Benzoin benzoin. 

 Lavender, sea-. See Limonium caroUnianum. 

 Leafcup, yellow. See Polymnia uvedalia. 

 Leatherwood. See Dirca pulustris. 



Ledum groenlandicum Oeder. Heath family ( Ericaceae ) . 



Synonym.— Ledum latifotium Ait. 

 Labrador tea; continental tea; James-tea. 



Evergreen shrub, 1 to 4 feet high, native in cold bogs and damp mountain 



woods, northern part of the United States and in Canada. 

 Part used.— Leaves (nonofficial). 



Ledum lutifolinm Ait. Same as Ledum groenlandicum. 

 Lemon, wild. Bee Podophyllum peltatum. 



Lemon-balm. See Melma officinalis. 



Xeonurus cardiaca L. Mint fam ily (Menthaceae). 



Motherwort; lions-tail; throwwort. 



Perennial plant, 2 to 5 feet high, naturalized from Europe, and occurring i 

 fields and waste places from Nova Scotia to North Carolina westward 1 



Nebraska. 



Ptiri used.— Herb (nonofficial) 



n 

 to 



Leptamnium virginianum ( L. ) Rat. Broomrape family ( Orobanchaceae). 



Synonym*.— Epipheyus rirghdana Bart.; Orobanche virginiana L. 

 Beechdrops; cancerroot 



Plant 6 Inches to 2 feet in height, parasitic upon the roots of beech trees from 



New Brunswick to Florida, west to Michigan and Louisiana. 

 Part wed.— Whole plant (nonofficial). 



I^eptandra. See Veronica virginieu. 



Leptandra mykuea (L.) Nutt. Same as Veronica mrgimca. 



Leptilon ranadense ( L. ) Britton. Same avS Erigeron canadensis. 



Lettuce, Indian. See Frasera carolinensit. 



Lettuce, tall. Bee Lactuca canadensis. 



Lettuce, white. See Xabalus athm and N. serpentariu*. 



