The pronunciation of Amaranthus is: mǎ chǐ xiàn.

Amaranthus (scientific name: Portulaca oleracea L.) is an annual herb in the order of Staphylinidae, family of Amaranthaceae, and the whole plant is glabrous. Stem procumbent, ambulatory spread, branches light green or dark red. Leaves alternate, leaf blade flattened, plump, horse-toothed, dark green above, light green or dark reddish below; petiole stout and short. Flowers sessile, blooming at noon; bracts leaflike; sepals green, galeate; petals yellow, obovate; stamens anthers yellow; ovary glabrous. Capsule ovoid; seeds minute, obliquely spherical, black-brown, glossy. Fl. May-Aug, fr. June-Sept.

The amaranth is fond of high humidity, drought-resistant, waterlogging-resistant, with the positive, suitable for cultivation in a variety of fields and slopes, with neutral and weakly acidic soil is better. Its germination temperature is 18℃, and the optimal growth temperature is 20-30℃. When the temperature exceeds 20 ℃, it can be sown in stages and marketed one after another. Protected cultivation can be annual production.