300 PLANT NAMES AND SYNONYMS 



d. P. aviculdre L. Europe, Asia and N. America. Knot-grass, 



Door-weed, Door-grass, All-seed, Armstrong, Beggar-weed, 

 Bird's-tongue, Bird-grass, Bird- weed, Centinode, Cow-grass, 

 Crab-weed, Finzach, Goose-grass, Hog-weed, Iron-grass, Knot- 

 wort, Male Knot-grass, Ninety-knot, Mantil, Pink-weed, Spar- 

 row-tongue, Stone- weed, Swine' s-grass, Tacker-grass, Way- 

 grass, Wire-grass*, Wire-weed. 



e. P. Bistorta L. (B. officinalis Eaf., B. major S. F. Gray). 



Europe and northern Asia. Bistort (i. e. twice bent), Snake- 

 weed, Adders wort, Dragon wort, Easter- ledges, Easter-magi en ts, 

 Astrology]:, Osterich, English Serpentary, Snakewort, Passions, 

 Red-legs, Sweet Dock, Twice-writhen; Ger. Wiesenknoterich, 

 Natterwurz, Knoterich; Fr. Bistorte (Codex), Couleuvrine. 

 Bhizome, Bistorta, Bad. l3istort8e. Bad. columbinse; astringent. 

 Similar properties belong to the indigenous (f) P. Virginia- 

 num L., Virginia Knotweed, Virginia Bistort; also to the 

 circumpolar (g) P. >ivipanim L. (B. viviparaS. F. Gray), 

 Alpine Bistort, Serpent-grass. 



h. P. CouvolviiliiS L. Asia, nat. in Europe and U. S. Black 

 Bindweed. Blackbird Bindweed, Climbing or Corn Bindweed, 

 Ivy or Knot Bindweed, Bear-bind, Corn- bind, Devil' s-tether, 

 With-wind, Climbing Buckwheat*. The name False Buck- 

 wheat is given to the similar (i) P. cristdtum Engelm. & Gr.; 

 (j)P. dumetoriiiii L. and (k) P. scaudens L. 



1. p. Hydropiper L. Europe, nat. in U. S. Water-pepper, 

 Smartweed, Biting Knotweed; Biting Persicaria, Bite-tongue, 

 Lake-weed, Pepper-plant, Red-knees, Red-shanks, Sickleweed*, 

 Ciilrage, Ciderage, Arse-smart, Arsenickj. P/an^ acrid, diure- 

 tic. 



m. P. orientale L. India, nat. in U. S. Prince's-feather, 

 Gentleman' s-cane, Garden Persicary, Ragged-sailor. 



n. P. Persicaria L. Europe, nat. in U. S. Spotted Knotweed, 

 Black-heart, Crab' s-claws, Heart-weed, Heart's-ease* (U. S.), 

 Heart' s-ear, Lover' s-pride, Peachwort, Persicaria, Persicary, 

 Pink-weed, Red-shanks, Red-weed, Willow-weed, Plumbago*. 



o. P. pimctatiim Ell. rP. acre H. B. K., P. Hydropiper Michx., 

 not L. ). British America, U. S. throughout, and southward. 

 American Smartweed, Dotted or Water Smartweed, Arsesmart, 

 Arsmart, Hydropiper, Water-pepper, Turkey-troop. Herb ac- 

 rid, diuretic, diaphoretic, emmenagogue. 



p. P. tinctorium Ait. Japan and China. Japanese Indigo plant, 

 A source of indigo. 



1642. POLYMNIA, L. Leaf-cup. Compositae. 



Dedicated to the Muse Polhymnia. Perennial herbs, some 

 shrubby. About 10 species, New World; 2 in L^. S. 



a. P. UvedAlia L. Eastern U. S. Yellow Leaf-cup, Bear's-foot, 

 Yellow Bear' 8-foot, Large-flowering Leaf-cup, Uvedalia. Boot 

 tonic, stimulant. 



