What is Amaranthus caudatus in english?

Amaranthus caudatus, a species of Amaranth originating in South America, is cultivated for its edible shoots, leaves and sprouted seeds. Its vernacular names include Inca wheat and love-lies-bleeding. Nowadays, it is cultivated in India, China, South America, Ethiopia, etc. as a grain crop. The seeds are used in everything from flour to beer. Inca wheat is also grown around the world as an ornamental.

In English, Amaranthus caudatus is known by Inca wheat, Love-lies-bleeding, Pendant amaranth, or Red-hot-cattail.

Red-hot-cattail

This is its name for the ornamental variety.