I only know purslane, but I don’t know what amaranth is. Please forgive me if there is any misunderstanding.

Purslane is an annual herbaceous plant of the Purslane family. Thick and juicy, hairless, 10-30cm tall. Born in sunny places such as field roadsides and garden ruins. Distributed throughout the country. This species is a medicinal and edible plant. The whole plant is used for medicinal purposes and has the effects of clearing away heat and dampness, detoxifying and reducing swelling, reducing inflammation, quenching thirst, and diuresis; the seeds can improve eyesight.

We usually eat it cold and stir-fried at home

Cold salad: wash fresh purslane several times with water, put it in boiling water, take it out and cut it into pieces. Put the segments on a plate, add an appropriate amount of garlic cloves and mash them into minced garlic and green onion segments. Heat the oil in a pot, pour it on the purslane, pour in soy sauce, mix well and serve. The taste is slightly sour.