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The Poisonous Plants of Indiana. 



Stanley Coulter. 



It is the purpose in tliis paper to consider only those plants occurring 

 within the limits of Indiana, which are said to be contact i)oisons. The 

 list as assembled from various authorities is sufficiently extended to raise 

 question as to the character of the facts upon which the forms were 

 included among the contact poisons. The list, as I have been able to 

 collate it, is as follows: 



Alisma Plantago-aquatica L. Water plantain. 



Arisaema triphyllum (L.) Torr. .Tack in the Pulpit. Indian Turnip. 

 Ai'isaema Dracontium (L.) Schott. Green Dragon. 

 Spathyema foetida (L.) Raf. Skunk Cabbage. 

 Veratrum viride Ait. Indian Poke. White Hellebore. 

 Cypripedium hirsutum IMill. Yellow Lady's Slipper. 

 Urtica gracilis Ait. Slender Nettle. 

 Urtica dioica L. Stinging Nettle. 

 Urticastrum divaricatum (L.) Kuntze. Wood Nettle. 

 Polygonum hydropiper L. Smartweed. Water Pepper. 

 Polygonum punctatum Ell. AVater Smartweed. 

 Phytolacca decandra L. Pokeberry. 

 Actsea rubra (Ait.) Willd. Red Baneberry. 

 Delphinium consolida L. Field Larkspur. 

 Anemone quinquefolia L. Wind flower. Wild Anemone. 

 Clematis Virglniana L. Virgin's Bower. Wild Clematis. 

 Ranunculus sceleratus L. Ditch Crowfoot. Cursed Crowfoot. 

 Ranunculus acris L. Tall or Meadow Buttercup. 

 Ranunculus bulbosus L. Bulbous Buttercup. 

 Podophyllum peltatum L. May Apple. Mandrake. 

 Sauguinaria Canadensis L. Bloodroot. 



Cruciferae: Various genera, including the mustards, pepper-grass and 

 horseradish. 



Drosera rotundifolia L. Round-leaved Sundew. 

 Ailanthus glandulosa Desf. Tree of Heaven. 



