cup grass


: any of several grasses constituting a genus (Erichloa) of annual and perennial grasses chiefly of warm or tropical regions
especially : a common weedy annual grass (E. contracta) of the eastern and central U.S. that has villous spikelets and the second glume acuminate

Word History


so called from the shape of the callus

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Cite this Entry

“Cup grass.” Dictionary, Merriam-Webster, Accessed 21 Jun. 2024.

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