Polygonella robusta (Small) Nesom & Bates. Largeflower Jointweed. Phen: Dec. Hab: Longleaf pine sandhills, Florida scrub. Dist: E. FL Panhandle south to c. peninsular FL.

Origin/Endemic status: Endemic

Synonymy: = Fl4, FNA5, K1, WH3, Nesom & Bates (1984); = Polygonella fimbriata (Elliott) Horton var. robusta (Small) Horton – Horton (1961); = Polygonum nesomii T.M.Schust. & Reveal – K3, K4, Schuster, Reveal, & Kron (2011); = Thysanella robusta Small – S

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Heliophily: 9