Indian millet vs Oryzopsis hymenoides

Indian millet and Oryzopsis hymenoides both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian millet	Yes	No	No	No
Oryzopsis hymenoides	Yes	No	No	No

As nouns, Indian millet and Oryzopsis hymenoides are synonyms defined as:

Indian millet and Oryzopsis hymenoides: valuable forage grass of dry upland areas and plains of western North America to northern Mexico

Other synonyms of Indian millet include mountain rice, silk grass, silkgrass.

Indian millet (noun)	Oryzopsis hymenoides (noun)
sorghums of dry regions of Asia and North Africa	valuable forage grass of dry upland areas and plains of western North America to northern Mexico
valuable forage grass of dry upland areas and plains of western North America to northern Mexico