rescue grass

noun
  1. a grass, Bromus unioloides (or B. catharticus), of tropical America, having clusters of flattened spikelets, grown for forage.

Origin of rescue grass

1880–85, Americanism; rescue, perhaps alteration of fescue
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of rescue grass