GROMWELL, VIRGINIA FALSE HELENIUM AUTUMNALE. 85 



Gromwell, Virginia false. See Onosmodium virglnianum 



Ground-centaury. See Polygala nuttallii. 



Ground-ivy. See GJecoma hederacea. 



Ground-raspberry. See Hydrastis canadensis. 



Ground-squirrel pea. See Jefersonia diphyUa. 



Gum, cotton-. See JS^yssa aquatica. 



Gum, red. See Liquidajnbar styraciflua. 



Gum, star-leaved. See Liquidambar styraciflua. 



Gum, sweet-. See Liquidambar styraciflua. 



Gum, tupelo. See Nyssa aquatica. 



Gum-plant. See Grindelia robusta. 



Gum-plant, broad-leaved. See Grindelia squarrosa. 



Gypsy-flower. See Cynoglossum officinale. 



Gypsy-weed. See Lycopus virginicus. 



Hackmatack. See Larix laricinu. 



Haircap-moss. See Polytrichum juniperinvm. 



Hamamelis. See Hamamelis rirginiana. 



Hamamelis virginiana L. Witch-hazel family ( Hamamelidaceae ) . 



Hamamelis; witch-hazel; winterbloom; snapping hazel. 



Indigenous shrub, found in low, damp woods from New Brunswick to Minne- 

 sota, south to Florida and Texas. 



Parts used. — Leaves (collected in autunui), bark, and twigs (official). 

 Hardback. See Spiraea tomentosa. 

 Hart's-thorn. See liJunmnis cathartica. 

 Haw, black. See Viburnum prunifolium. 

 Hawkweed, early. See Hieracium venosum. 



Hawthorn. See Crataegus oxyacanfha. . 



Hazel, snapping. See Hamamelis rirginiana. 

 Heal-all. See Prunella rulgaris and Scrophuluria niarilandica. 

 Healing-herb. See Symphytum officinale. 

 Heart-liverleaf. See Hepatica acuta. 

 Heartsease. See Viola tricolor. 

 Hedeoma. See Hedeoma pulegioides. 

 Hedeoma pulegioides (L. ) Pers. Mint family (Menthaceae). 



Hedeoma; American pennyroyal; tickweed; squawniint. 



Low, native, annual plant, 6 to 12 inches high, growing in barren woods and dry 

 fields, Nova Scotia to Minnesota, south to Nebraska and Florida. 



Parts used. — Leaves and flowering tops, and the volatile oil distilled from these, 

 are official. 



Hedge-fumitory. See Fumaria officinalis. 



Hedgethorn. See Crataegus oxyacantJui. 



Helenium^ autumnale L. Aster family (Asteraceae). 



Sneeze weed; sneezewort; swamp-sunflower. 



Native perennial, 2 to 8 feet high, growing in swamps, wet fields, and meadows, 

 Canada to Florida and Arizona. 



Part used. — Herb (nonofficial). 



