toothcup
noun
Definition of toothcup
1 : a low-growing North American herb (Rotala ramosior) found on sandy shores and having solitary flowers and regularly splitting capsules
2 : a low herb (Ammania coccinea) of the family Lythraceae chiefly found in southern U.S. and having narrow leaves and flowers in clusters of two, three, or several in the leaf axils
From the M-W Editors
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