I am a significant source of natural rubber. My milky latex is harvested for this purpose. I am native to the Amazon rainforest but cultivated worldwide in the tropics. My seeds are poisonous but yield an oil used in paints.

1. My latex is used to make tires.
2. I thrive in warm, humid climates.
3. I belong to the family Euphorbiaceae.
4. My scientific name starts with 'Hevea'.