Dioscorea (Not sweet potato)

* Cortisone is the toxin- made from diosgenin found in the yams.

1st isolated Steroid 

Also a birth control

And used to kill fish for easy "hunting"  

Permarin--Pregnant Horses urine

This is cheaper than using the yams  

Rotenone is the toxin in this plant

Used to kill indesirable fish

used as insecticides- is cert. Organic 

Used to fight Malaria episodes (does not treat)

Found in new land

Active ingredient is Quinine