There are hundreds of related plants, including rubber trees, trees that produce castor and tung oil, and the cassava, a root crop.
大戟科有数百种相关植物，包括橡胶树，产生蓖麻油和桐油的树，以及木薯这种块根作物。
2
In 1962, Stylosanthes was firstly introduced to Hainan of China as a cover crop in rubber tree plantation from Malaysia.
我国于1962年首次从马来西亚引种柱花草到海南岛，作为橡胶园的覆盖作物。
3
The rubber tree (Hevea brasiliensis) has been an important economic crop which has a large-scale cultivation in the tropical and subtropical regions, and 99% natural rubber comes from it.