There are hundreds of related plants, including rubber trees, trees that produce castor and tung oil, and the cassava, a root crop.

属植物多达数百种，包括橡胶树、各种产蓖麻油和桐油树木，以及木薯这类块根作物等。

Although some gums today still use plants, most recipes today now use synthetic rubber mixed with sugar and other flavorings.

尽管今天有些香糖仍在使用植物，但如今多数都使用是合成橡胶与糖和其他调味料混合而成。

As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is " the most stable state that the plant can maintain, " Farrant says.

随着植物， 这些资源首先呈现出蜂蜜特性， 然后呈现出橡胶特性，最后进入玻璃状状态， 这是“植物可以维持最稳定状态， ” Farrant 说。