52 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



Penthorum sedoides L. Virginia stonecrop family (Penthoraceae). 



Virginia stonecrop; ditch-stonecrop. 

 Native, perennial herb, about 1 foot in height, growing in ditches and swamps 



from New Brunswick to Minnesota, south to Florida and Texas. 

 Part used. — Herb (nonofficial.) 

 Pepper, water-. See Polygonum'-hydropiper. 

 Peppermint. See Mentha piperita. 

 Pepper-plant. See Polygonum hydropiper. 



Peramium pubescens (Willd.) MacM. Orchid family ( Orchidaceae ) . 



Synonym. — Goodyera pubescens R. Br. 



Downy rattlesnake-plantain; rattlesnake-weed; netleaf-plantain ; scrofula-weed. 

 Native, perennial herb, 8 to 12 inches in height, occurring in rich woods from 

 Newfoundland to Minnesota, south to Florida and Tennessee. Most common 

 southward. 

 Part used. — Plant (nonofficial). 

 Peramium repens (L.) Salisb. Orchid family (Orchidaceae). 



Synonym. — Goodyera repens R. Br. 



White plantain; lesser rattlesnake-plantain; smaller netleaf-plantain; squirrel- 

 ear. 

 A smaller plant than P. pubescens, but very similar to it and more common 



northward. 

 Part used. — Plant (nonofficial). 



Persimmon. See Diospyros virginiana. 



Phoradendron flavescens (Pursh) Nutt. Mistletoe family (liOranthaceae). 



Synonym. — Viscnin _^ft<<re.^cens Pursh. 



Mistletoe; American mistletoe. 



Parasitic shrub, found on deciduous-leaved trees from New Jersey to Missouri, 

 south to Florida and Texas. 



Parts used. — Leaves and branches (nonofficial). 



Phytolacca. See Phytolacca decandra. 

 Phytolacca americana L. Same as Phytolacca decandra. 



Phytolacca decandra L. « Pokeweed family (Phytolaccaceae). 



Synonym. — Phytolacca dmencana L.« 

 Phytolacca; poke; pokeweed; garget; scoke; inkberry. 

 Native, perennial herb, with large and branching stem, 6 to 10 feet high; in rich, 



moist soil, INIaine to Minnesota, south to Florida and Texas. 

 Parts tfsed.— Root collected in autumn (official); fruit (official in U. S. P. 1890); 

 leaves (nonofficial). 



Picea mariana (Mill.) B. S. P. Pine family (Pinaceae). 



Synonym. — Abies nigra Desf. 



Black spruce; spruce-gum tree. 



Indigenous, evergreen tree, 40 to 80 feet in height, growing on elevated situa- 

 tions and in cold bogs from Canada south along the mountains to North Car- 

 olina, and to Minnesota. 



Parts used. — Branches, and the essence obtained from the same (nonofficial). 



Pilewort. See Erechtites hieracifolia and Scrophularia marilandica. 

 Pilotweed. See Silphium laciniatum. 

 Pimpernel. See Phnpinella saxifraga. 

 Pimpernel, red. See Anagallis arvensis. 

 Pimpernel, scarlet. See .Anagallis arvensb. 



a Phytnlacr.a americniiH 1 .. by right of priority should be accepted, but P. decandra L. is used in con- 

 formity with tlie Pharmacopoeia. 



