threesquare

== English == === Alternative forms === three-square === Etymology === From three-square, referring to a cross-section of the plant's stem appearing as an equilateral triangle. === Pronunciation === IPA(key): /ˈθɹiːskwɛə(ɹ)/ === Noun === threesquare (uncountable) Several species of bulrush (biologically, sedges) with a triangular stem: Schoenoplectus americanus (American threesquare, Olney's bulrush, chairmaker's bulrush). Schoenoplectus pungens (common threesquare, sharp club-rush) ==== Translations ====