Persicaria densiflora (Meisner) Moldenke. Section: Persicaria. Common name: Dense-flower Smartweed. Phenology: Jun-Oct. Habitat: Swamp forests. Distribution: The Persicaria glabra complex is widespread in the Neotropics, in North America north to s. NJ, VA, KY, MO, and TX. The distribution of Persicaria densiflora is unclear.
Origin/Endemic status: Native
Taxonomy Comments: Persicaria densiflora, the American component of the pantropical Persicaria glabra complex, seems to warrant recognition.
Synonymy ⓘ: = Tx; = Persicaria portoricensis (Bertero ex Small) Small — S, S13, illegitimate name; = Polygonum densiflorum Meisn. — Bah, C, F, G, GW2, NcTx, RAB, Tat, WH3, Horton (1972); < Persicaria glabra (Willd.) M.Gómez — Ar, FNA5, Il, K4, Mex, Mo3, Pa, Tn, Va. Basionym: Polygonum densiflorum Meisn. 1855
Links to other floras: < Persicaria glabra - FNA5
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL (name change)
- Eastern Mountains and Piedmont: OBL (name change)
- Great Plains: OBL (name change)
- Midwest: OBL (name change)
Heliophily ⓘ: 6
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