Sentence:  Such vegetable <WSD>amarants</WSD> have a fair content of protein and are rich in Vitamins A and C, as well as in minerals; but they contain also slight amounts of anti-nutritional factors, especially oxalates and nitrates. These leaf-producing <WSD>amarants</WSD> are adapted to many different ecological environments. 
Meaning of the word marked with <WSD> tags:  Any of various herbs of the genus "Amaranthus".