What does "ricegrass" mean?

Any of the genus Oryzopsis of Chinese and North American plants in the grass family.

Ricegrass

Common synonyms include: agronomic ricegrass, breeding related, cultivar related, grasslike, oryzopsis, rice grass.

noun

noun ·Rare ·Advanced level

Noun

1
Any of the genus Oryzopsis of Chinese and North American plants in the grass family. countable, uncountable
2
any grass of the genus Oryzopsis wordnet

From rice + grass, from its resemblance to true rice.