1. of, relating to, or belonging to the grass family (Poaceae)
Usage: botanical term; technical

Examples

• Wheat and rice are poaceous plants that serve as staple crops worldwide.
• The poaceous species in the meadow included bluegrass and timothy.
• Botanists classify bamboo as a poaceous plant despite its woody appearance.
• The field was dominated by poaceous vegetation suitable for grazing.
• Many poaceous grasses have fibrous root systems that prevent soil erosion.