Polygonella brachystachya Small. Florida October-flower. Hab: Longleaf pine sandhills, Florida scrub. Dist: Endemic to c. and s. peninsular FL.
Origin/Endemic status: Endemic
Taxonomy Comments: P. brachystachya resembles var. croomii in its narrow leaves, but has the ocrea and ocreola tips short and acute (more like var. polygamum). Nesom & Bates (1984) assert that "intermediates occur … that will have to be arbitrarily identified, but without recognition of the varieties an interesting pattern of variation is obscured". It appears that the taxa are valid biological species, and that confusion is only caused by herbarium identifications. Additional variation in P. brachystachya remains taxonomically unexplained and in need of study and resolution.
Synonymy: = S, S13; = Polygonella polygama (Vent.) Engelm. & A.Gray var. brachystachya (Meisn.) Wunderlin – Fl4, FNA5, K1, WH3, Nesom & Bates (1984), Wunderlin (1981); = Polygonum polygamum Vent. var. brachystachyum (Meisn.) T.M.Schust. & Reveal – K3, K4
Heliophily ?: 9
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© Scott Ward | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Scott Ward | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Jay Horn source | Original Image ⭷Feedback
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