hevea

From the genus name.

hevea (plural heveas)

1. (botany) Any of the genus Hevea of flowering plants in the spurge family, including the economically important rubber tree Hevea brasiliensis.
   • 2015 August 18, Diane Cardwell, “Making Tires From a Desert Shrub Found in the U.S.”, in New York Times‎:

     Tire executives say that global demand for tires, which use as much as 70 percent of the world’s rubber supply, will expand as less developed nations industrialize, requiring roughly 21 million additional acres of hevea, the source of natural rubber, by 2024.

• heave

From the genus name Hevea, from Quechua hyeve (“rubber tree”).

• IPA^(key): /eˈbea/, [eˈβea]

hevea f (plural heveas)

1. rubber tree

• árbol del caucho, caucho (Latin America)
• siringa (Argentina, Bolivia, Peru)

• “hevea” in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014.