Polygonum glaucum Nuttall. Common name: Seabeach Knotweed, Seaside Knotweed. Phenology: May-Oct; Jun-Nov. Habitat: Ocean beaches, sound-side sandy shores, dune bases. Distribution: 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, K4, NE, NY, RAB, S, Tat, Va, WH3, Horton (1972), Mitchell & Dean (1978), (basionym); = Polygonum maritimum L. — S13, misapplied
Links to other floras: = Polygonum glaucum - FNA5
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU
- Northcentral & Northeast: FACU
Heliophily ⓘ: 9
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