Panicum capillare vs old witchgrass

Panicum capillare and old witchgrass both are nouns.

Word	Noun	Adjective	Verb	Adverb
Panicum capillare	Yes	No	No	No
old witchgrass	Yes	No	No	No

As nouns, Panicum capillare and old witchgrass are synonyms defined as:

Panicum capillare and old witchgrass: North American grass with slender brushy panicles; often a weed on cultivated land

Other synonyms of Panicum capillare include old witch grass, tumble grass, witch grass, witchgrass.

Panicum capillare (noun)	old witchgrass (noun)
North American grass with slender brushy panicles; often a weed on cultivated land	North American grass with slender brushy panicles; often a weed on cultivated land