Different appearance

Let's talk about the difference between their leaves first. The leaves of the former are oval, with a length of 3.5 to 6 cm and a width of 5 to 10 cm; The latter leaves are round or oval, with a diameter of about 1.5 cm. Then there is the difference of their petioles. The petioles of the former are 25 to 40 cm long, while those of the latter are 5 to 10 cm long, and those of the former are much longer

Different distribution

They are widely distributed in the world, so I won't elaborate here. The main difference is their distribution in China. The former is mainly distributed in Hunan, Jiangxi, Zhejiang, Sichuan and other provinces, that is, most of them are distributed in southern provinces; However, the distribution of the latter is slightly wider, which is distributed in most provinces of China

Different edible value

For Brasenia Lactuca, its consumption is very common. There are many folk dishes about it. It has even been used as a food material since ancient times. As for non edible vegetables, it's not that they can't be eaten, but they are rarely used as ingredients, and there are taboos. For example, they can't be eaten casually when children are young because they have the effect of strengthening yang

Different flowering and fruiting stages

For Brassica Lactuca, its flowering period is about June and its fruiting period is about October; As for watercress, the flowering and fruiting period is from April to October. Therefore, its flowering and fruiting period is slightly longer