Definition of salt grass in US English:

salt grass

(also saltgrass)

noun

North American
  • Grass growing in salt marshes or in alkaline regions.

    • ‘The medium-tall salt grass is found in salt and brackish coastal marshes and can grow into large monocultures. It is an important food source for geese and other birds.’
    • ‘Inland saltgrass is a native, perennial, warm-season, sod-forming short grass with vigorous, creeping, scaly underground stems.’