Speaking of Asian vegetables, Brassica oleracea tends to get all the love because Europeans are more familiar with cauliflower, kale, Brussels sprouts, collard greens, etc but Brassica rapa is perhaps even more diverse.

You might be familiar with turnips, bok choy, napa cabbage, and mizuna, but within Asia, there are a dizzying array of vegetables barely documented that are all derivatives of this weedy mustard.

Vegetables like Jima Turnip of the Tibetan plateau, Taicai, Wutacai, etc are hardly documented in English at all