38 WILD MEDICINAL PLANTS OF THE UNITED STATES. 







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Hyoscyamus. See Hyoscyamus niger. 



Hyoscyamus niger L. Potato family (Solanaceae) . 



Hyoscyamus; henbane; hog's-bean; insane-root. 



Biennial herb, 6 inches to 2 feet high, sparingly naturalized from Europe, in 

 waste places from Nova Scotia to Ontario, New York, and Michigan. 



Parts used- — Leaves and flowering tops from plants of second year's growth 

 (official); seeds are also used (nonofficial). 



Hypericum perforatum L. St. John's-wort family (Hypericaceae). 



John's-wort; common St. John's-wort. 



Herbaceous perennial, 1 to 2 feet high, naturalized from Europe; common in 



fields and waste places throughout almost the entire United States, except the 

 Southern States. 



Pari used. — Herb (nonofficial). 



Hyssop. See Hyssopus officinalis. 



Hyssop, wild. See Verbena hastaia. 

 Hyssop-skullcap. See Scutellaria integrifolia. 



Hyssopus officinalis L. Mint family (Menthaceae). 



Hyssop. 



Perennial herb, 1 to :i feet high, naturalized from Europe, and found along road- 

 sides and in waste places from Ontario and Maine to North Carolina, and on 

 the Pacific coast. 



Part used. — Herb (nonofficial). 



Ilex opaca Ait. Holly family (Aquifoliaceae). 



American holly; white holly. 



Native tree, 20 to 40 feet in height, with evergreen leaves; in moist woodlands. 



Maine to Florida, and west to Missouri and Texas; most abundant in the 

 Atlantic States. 



Parts user/.— Leaves and bark (nonofficial). 

 Ilex verticillata (L. ) A. Gray. Holly family (Aquifoliaceae). 



Synonym, — Prmos verticillata L. 



Black alder; feverbush; Virginia winterberrv. 



A native shrub, growing in moist woods and along banks of streams from Nova 

 Scotia to Florida, west to Wisconsin and Missouri. 



Parti used, — Bark and berries (nonofficial). 



/ Impatiens aurea Muhl Jewelweed family (Impatientaceae). 



Synonym. — Impatiens pallida Nutt. 



Jewelweed; pale touch-me-not; snapweed; wild celandine. 



Native, annual plant, 2 to 4 feet high, found in rich soil in moist, shady placet 

 from Quebec to Oregon, south to Georgia and Kansas. 



Part used. — Herb (nonofficial). 

 Impatiens biflora Walt. Jewelweed family (Impatientaceae). 



Synonym. — Impatient futva Nutt 



Jewelweed; spotted touch-me-not; snapweed; silverleaf. 



Native, annual plant, 2 to 5 feet high, growing in rich soil in moist, shadv places 

 from Canada to Alaska and Oregon, south to Florida and Missouri; more com- 

 mon than the pale touch-me-not. 



Part used. — Herb (nonofficial). 

 Impatiens fulva Nutt. Same as Impatient biflora, 

 Impatiens pallida Nutt. Same as Impatiens aurea. 

 Indian-cup. See Sdphium perfoliatum. 

 Indian-paint. See Sangninaria canadensis. 

 Indian-physic. See Porterantku* trifoUatu». 



