A hundred years ago, a nerdy botanist poking around Penang Island on vacation found a new species of durian that fruited on the trunk and roots of the tree. He named it Durio pinangianus, after where he found it, and then nobody cared.
Maybe there was already so much of the unequivocally delicious kinds of durian on Penang that nobody could be bothered about the island's only native durian, not even the Penang Botanic Garden. Although we tried, we couldn't find D. pinangianus on Penang Island either.
We found it in Sungai Sedim, a small national park that boasts the world's longest canopy walk, a kilometer long steel bridge suspended 80 feet over the jungle. The irony was that for once, our durian lay on the jungle floor.