Houttuynia cordata Thunb, which should be the most famous of the ten species, is also called breaking ears and cutting children's roots. Popular in Yunnan, Guizhou, Sichuan and other places. Locals can use it as a side dish or as a main course. Most foreigners can't get used to the fishy smell, but locals love it. In fact, Houttuynia cordata Thunb has the efficacy of clearing away heat and toxic materials. Interested friends can try to buy it online.
Of course, the last appearance is the bean juice of old Beijing ~ It has a strong "swill smell", sour and sticky, with a long aftertaste. It is a mystery that Beijingers love to drink bean juice that foreigners will never understand.