The name comes from Cantonese taap3 coi3 ('drooping vegetable'), often rendered tat soi or tat choy. However, its natural habitat is not where Cantonese is spoken but alongside the Yangtze River, where it is called thaq-khu-tshe () or wūtācài (, 'dark drooping veggie').
The name originates from Cantonese taap3 coi3 ('drooping vegetable'), commonly rendered as tat soi or tat choy. However, its natural habitat is not where Cantonese is spoken but alongside the Yangtze River, known in local dialects as thaq-khu-tshe () or wūtācài (, 'dark drooping veggie').