grass poly
noun
: a glabrous annual loosestrife (Lythrum hyssopifolia) with small solitary pink flowers that is probably native to Europe but is widely naturalized in moist areas
called also hyssop loosestrife
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“Grass poly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grass%20poly. Accessed 26 Nov. 2024.
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