Definition of rescue grass in English:

rescue grass

noun

North American
  • A drought-resistant South American species of brome grass, Bromus catharticus, grown as a forage grass on dry soils or in dry climates, especially in the southern United States.

Origin

Mid 19th century. From rescue + grass, so called on account of its hardy character.

Pronunciation

rescue grass

/ˈrɛskjuː ˌɡrɑːs//ˈrɛskjuː ˌɡras/