132 



MANUAL OF POISONOUS PLANTS 



Fig. 19i. Black Nightshade (Solanum 

 nigrumy). Contains a poisonous alkaloid. 

 (Chesnut, U. S. Dept. Agr.). 



The writer has not only eaten berries of this, but has seen others eat berries of 

 this and the common Black Nightshade without injurious results. Contains the 

 alkaloid solanin, with a hot, bitter taste. 



Solanum triflorum Nutt. Nightshade. 



Common from Nebraska to Rocky Mountains to Alberta, south to Texas. 

 Poisonous. 



Solanum tuberosum L. Potato. 



At certain times the tubers of the potato are poisonous, especially when 

 green. The writer knows of an instance where the eating of potatoes acted 

 as a poison. The substances produced in the young shoots of the potatoes 

 are solanin and solanadin. 



Solanum carolinense L,. Horse-nettle. 



Southern United States North to Minnesota and East to New York. 

 Fruit with disagreeable odor. Said to be poisonous. Narcotic. 



Solanum Dulcamara L. Bittersweet. 



The berries are poisonous, as are also the leaves. Cattle are known to have 

 been poisoned by it. The bitter substance contained in it is known as dulca- 

 marin. 



Lycopersicum esculentum Mill. Tomato. 



