IM.ANT IMloni.KMS 73 



sagrada, Seneca snakeruut, and [)nr[)le cnnillower. (iinsj-n^ 

 has already been doniestieatiMl, the total yield in states east of 

 the Mississippi River being abont (Uie niillinn dulhus aninndU. 



A considerable j)()rti()ii ol' ciiide drugs use(l in iln- Inilrd 

 States is of foreign origin, 'id supply the lionic niarkcl and 

 save millions of dollars now s[)ent on foreign (hugs, ilic 

 Bureau has interested itself in the experimental culiurr *>{ 

 these foreign plants in soil and climate similai- t<» tlicii' own. 

 Plots of Asiatic poi)i)y, camphor trees, cinchona, belladonna, 

 foxglove, and red pep[)ers have been planted in suitable parts 

 of our country. 



Poisonous plants. Certain [)lants are p(»is(»n(ius cither when 

 handled oi- eaten. For lack of statistics, no estimate can be 

 li'iven as to the amount of damaiiv done b\' them. 



Complaints have been so numerous against various j)lants 

 which poison man and animals, that the (ioNcniment has 

 investigated them and has issiu'd a number ol bulletins on 

 poisonous plants of the liiitetl States.^ (Sec JJniirh'ti .sv;, 

 ''Thirty Poisonous Plants.") 



Of the thirty plants descril)ed. about one third are \V('e(ls : 

 the others are fungi, herbs, shrubs, and iiees. 'The most 

 poisonoits plants are nuishrooms {AnKUiittt iiiiisnirld and Anm- 

 n(t«. jfh(fUoi(h's), the various species of w ater hemlock ( < 'irnf<i ), 

 and the hjco weed (^AdnKjahm). Damage to the li\e-stock 

 btisiness from loco weed is enormous. Colorado, in a vain 

 attempt to exterminate it, spent SilOO.ono in hoimtic^ l»etween 

 the years 1S81 and 1.^05. 



1 JhdldhiHfroin Uiiilcd iStaUs iJcpartnuut nf A</rirul(tir( : 



28. Weeds and Imw m Kill tlieiii. 



80. Thirty Poisonous Plants. 



188. Weeds used in Medicine. 



270. Methods of eradicating: JdlniM'n (iiii.v^. 



Besides these, almost every state issues complete and fully illusirateil bul- 

 letins on its own weeds. Canada issues weed bulletins <.n an elaborate scale. 



