ExamplesMore: Next The megagametophyte is of the " Polygonum " type. It was first isolated from " Polygonum campanulatum ". Seemingly more benign would be black bindweed, Polygonum convolvulus. Schisandra, rape seed extract and polygonum will slow ageing. Chinese medicine also uses a Polygonum ...
gutta-percha: A rubbery substance derived from the latex of any of several tropical trees chiefly of the genus Palaquium of Southeast Asia, used in dental devices and formerly as an electrical insulator and in golf balls.