Polygonum glaucum Nuttall. Seabeach Knotweed, Seaside Knotweed. Phen: May-Oct; Jun-Nov. Hab: Ocean beaches, sound-side sandy shores, dune bases. Dist: Along the coast, MA south to ne. FL; also in Panhandle FL and s. AL (perhaps not native on the Gulf Coast).
Origin/Endemic status: Native
Synonymy ⓘ: = C, F, Fl4, FNA5, K1, K3, K4, NE, NY, RAB, S, Tat, Va, WH3, Horton (1972), Mitchell & Dean (1978); = Polygonum maritimum L. – S13, misapplied
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU
- Northcentral & Northeast: FACU
Heliophily ⓘ: 9
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© Gary P. Fleming | Original Image ⭷
© Scott Ward | Original Image ⭷
© Scott Ward | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Scott Ward | Original Image ⭷
© Scott Ward | Original Image ⭷Feedback
See something wrong or missing on about Polygonum glaucum? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.
Cite as...