Edrastima uniflora (Linnaeus) Rafinesque. Common name: Oldenlandia. Phenology: May-Oct. Habitat: Pondshores, muddy drawdown shores, moist to wet ecotones of Coastal Plain streamheads, other moist to wet places. Distribution: Mostly a species of the Southeastern Coastal Plain: NY (Long Island) south to s. FL and west to TX, north in the interior to MO. Alleged by some to be non-native, and of African origin (Ward 2012a). Discovered in PA Coastal Plain in 2009 (S. Grund, pers.comm., 2019).

Origin/Endemic status: Endemic

Synonymy ⓘ: = K4; = Hedyotis glomerata Elliott, a later name; = Hedyotis uniflora (L.) Lam. — C, F, GW2, Rogers (1987); = n/a — Pa; = Oldenlandia uniflora L. — Ar, Fl5, G, Il, Mo3, NY, RAB, S, Tat, Tn, Va, WH3, Terrell & Robinson (2006), Terrell (1991); > Hedyotis uniflora (L.) Lam. var. fasciculata (Bertol.) W.H.Lewis — Tx; > Hedyotis uniflora (L.) Lam. var. uniflora — Tx; > Oldenlandia fasciculata (Bertol.) Small — S; > Oldenlandia uniflora L. var. fasciculata (Bertol.) D.B.Ward — Ward (2012a); > Oldenlandia uniflora L. var. uniflora — Ward (2012a). Basionym: Oldenlandia uniflora L. 1753

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW (name change)
• Eastern Mountains and Piedmont: FACW (name change)
• Great Plains: FACW (name change)
• Midwest: FACW (name change)
• Northcentral & Northeast: FACW (name change)

Heliophily ⓘ: 8