Jan., 1904.] Poisonous and Other Injurious Plants. 73 



205. Daucus carota L. Wild Carrot. Persons handling the plant 



are often poisoned, especially when the plant is wet with 

 dew. Causes large blisters to form. 



206. Cornus florida L,. Flowering Dogwood. The berries are 



reputed to be poisonous. 



207. Cephalanthus occidentalis L. Button-bush. Contains a 



poisonous principle. 

 20S. Lobelia cardinalis h. Red Lobelia. Cardinal Flower. 

 2og. Lol:)elia syphilitica L- Blue Lobelia. 



210. Lobelia puberula Mx. Downy Lobelia. 



211. Lobelia spicata Lam. Pale Spiked Lobelia. 



212. Lol^elia leptostachys A. DC. Spiked Lobelia. All the 



above acrid and poisonous. 



213. Lobelia inflata L. Indian Tobacco. Very poisonous, nar- 



cotic and acrid. 



214. Lobelia kalmii L. Kalm's Lobelia. 



215. Lobelia nuttallii R.&S. Nuttall's Lobelia. Both the above 



acrid and poisonous. 



216. Ambrosia artemisiaefolia L. Roman Ragweed. The pollen 



has an irritant action upon the muceus membranes ; 

 c^use of hay fever. 



217. Xanthium spinosum L. Spiny Clotbur. The seeds and 



probably the whole plant poisonous. 

 21S. Xantliium strumarium L. European Cocklebnr. Young 

 seedlings and seeds probably poisonous to hogs. 



219. Xanthium canadense Mill. American Cocklebur. Young 



seedlings poisonous to hogs. 



220. Eupatorium perfolintum L. Boneset. Emetic in large doses. 

 22 1. Rudbeckia laciniata L. Tall Cone Flower. Supposed to 



be fatal to sheep and hogs. 



222. Bidens frondosa L. Black Beggar-ticks. Produces an 



itching sensation to some persons. 



223. Helenium autumnale L. Sneezeweed. Plant and also 



flowers poisonous to cattle, sheep and horses. 



224. Helenium nudiflorum Nutt. Purple-head Sneezeweed. 



Poisonous. 



225. Helenium tenuifolium Nutt. Slender-leaf Sneezeweed. 



Poisonous. Supposed to be fatal to horses and mules. 



226. Anthemis cotula L. Mayweed. Will sometimes blister the 



skin. Has a disagreeable odor. 



227. Artemisia absinthium L. Common Wormwood. The vola- 



tile oil of this plant is a violent, narcotic poison. 



228. Arctium lappa L. Great Burdock. Produces an itching 



sensation to some persons. 



229. Cichorium intybus L. Chicory. When fed in large quan- 



' titles to dairy cattle it imparts a bitter flavor to the milk 

 and butter. 



