What is the meaning of Jointweed?

(n.) A slender, nearly leafless, American herb (Polygonum articulatum), with jointed spikes of small flowers.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). jointweed. Retrieved September 24, 2026, from http://smartdefine.org/jointweed/definitions/2024677
ChicagoWebster's. 2011. "jointweed" http://smartdefine.org/jointweed/definitions/2024677 (accessed September 24, 2026).
HarvardWebster's 2011, jointweed, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/jointweed/definitions/2024677>.
MLAWebster's. "jointweed" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/jointweed/definitions/2024677>