36 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



Helianthemum canadense (L.) Michx. Rock-rose family (Cistaceae). 



Frostweed; frostwort; frost-plant; Canadian rock-rof-e. 



Native, perennial herb, about one foot in height; in dry, sandy soil, Maine to 

 Wisconsin, south to North Carolina and Kentucky. 



Part ttxed. — Herb (nonofficial). 

 Hellebore, American. See Veratrnni riride. 

 Hellebore, green. See Veratrum riride. 

 Hellebore, swamp-. See Veratrum riride. 

 Helmetpod. See Jeffersonia diphylla. 

 Helonias dioica Pursh. Same as C'hamaeUrium luteum. 

 Hemlock. See Tsuga canadensis. 

 Hemlock, poison-. See Coniuni rnaeulatum. 

 Hemlock, water-. See Cicuta maculata. 

 Hemlock-spruce. See Tsuga canadensis. 

 Hemp, black Indian. See Apocynum cannabinum. 

 Hemj:), Canadian. See Ajjoojnum cannahinum. 

 Hemp, white Indian. See Asclepias incarnata. 

 Henbane. See Hyoscyamus niger. 

 Hepatica acuta (Pursh) Britton. Crowfoot family (Ranunculaceae). 



Synonym. — Hepatica aciitiloba DC. 



Heart-liverleaf; sharp-lobed liverleaf; liverwort. 



Perennial herb, 4 to 9 inches high, found in woods from Quebec and Ontario, 

 south to Georgia (but rare near the coast), west to Iowa and Minnesota. 



Part used. — Leaves (nonofficial). 



Hepatica acutiloha DC. Saine as Hepatica acnta. 



Hepatica hepatica (L. ) Karst. Crowfoot family (Ranunculaceae). 



Synonym. — Hepatica triloba Chaix. 



Round-lobed liverleaf; kidney-liverleaf; liverwort. 



Perennial herl), 4 to inches high; in woods from Nova Scotia to northern 

 Florida, west to Iowa and Missouri; less common than the heart-liverleaf. 



Part used. — Leaves (nonofficial). 

 Hepatica triloba Chaix. Same as Hepatica hepatica. 

 Heracleum lanatum. Michx. Parsley family ( Apiaceae). 



Masterwort; cow-parsnip; youthwort. 



Native, perennial herb, 3 to 5 feet high, growing in moist meadows and culti- 

 vated ground from Canada south to North Carolina, Utah, and California. 



Parts used. — Root, leaves, and seeds (nonofficial). 

 Hercules-club. See Fagara clava-herculis. 

 Heuchera americana L. Saxifrage family ( Saxifrag-aceae ) . 



Alum-root; American sanicle. 



Native, perennial herb, 2 to 4 feet in height; in shady, rocky woodlands from 

 Connecticut to Minnesota, south to Alal^ama and Louisiana. 



Part used. — Root (nonofficial). 

 Hickory, shellbark-. See Hicoria orata. 

 Hicoria ovata (Mill.) Britton. Walnut family ( Jug-landaceae) . 



Synonym.- — Carya alba Nutt. 



Shagbark, shellbark-hickory. 



Large, native tree, sometimes 120 feet in height; in rich soil from Quebec to 

 southern Ontario and Minnesota, south to Florida and Texas. 



Parts used. — Bark and leaves (nonofficial). 



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