Persicaria robustior (Small) E.P. Bicknell. Section: Persicaria. Water Smartweed. Phen: Jul-Nov. Hab: Peaty shores or semi-aquatic in water. Dist: NS, QC, MI, MO, south irregularly to s. FL and TX, and south into tropical America. Probably under-represented as to states of occurrence because of frequent synonymization.
Origin/Endemic status: Native
Synonymy ⓘ: = FNA5, Il, K3, K4, Mi, NE, NY, Pa; = n/a – RAB; = Polygonum robustius (Small) Fernald – C, F, G, K1, Tat, Mitchell & Dean (1978); < Persicaria punctata (Elliott) Small – Mex; > Persicaria punctata (Elliott) Small var. eciliata Small – S13; > Persicaria punctata (Elliott) Small var. robustior Small – S13; < Polygonum punctatum Elliott – Horton (1972)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL
- Eastern Mountains and Piedmont: OBL
- Great Plains: OBL
- Midwest: OBL
- Northcentral & Northeast: OBL
Heliophily ⓘ: 6
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