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arrow grass

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Definition of arrow grass

1 : a plant of the genus Triglochin especially : an herb (T. maritima) that sometimes poisons livestock
2 : any of several grasses of the genus Aristida (such as A. purpurascens)
3 : porcupine grass sense 1

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History and Etymology for arrow grass

so called from the shape of the burst capsules

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“Arrow grass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arrow%20grass. Accessed 9 May. 2021.

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