Persicaria punctata (Elliott) Small. Section: Persicaria. Common name: Dotted Smartweed. Phenology: Jul-Nov. Habitat: Swamp forests, bottomlands, marshes. Distribution: NS, ON, and BC south to FL, TX, and CA, south into the New World tropics.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, Can, Fl4, FNA5, Il, K4, Mi, Mo3, NE, NY, Pa, Tn, Tx, Va; = Polygonum punctatum Elliott — Bah, GW2, NcTx, RAB, Tat, W, WH3, WV; < Persicaria punctata (Elliott) Small — Mex; > Persicaria punctata (Elliott) Small var. leptostachya (Meisn.) Small — S, S13; > Persicaria punctata (Elliott) Small var. punctata — S, S13; < Polygonum punctatum Elliott — Horton (1972); > Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett — C, G, Mitchell & Dean (1978); > Polygonum punctatum Elliott var. leptostachyum (Meisn.) Small — F; > Polygonum punctatum Elliott var. parvum Vict. & Rousseau — F; > Polygonum punctatum Elliott var. punctatum — C, F, G, Mitchell & Dean (1978); Polygonum punctatum Elliott. Basionym: Polygonum punctatum Elliott 1821
Links to other floras: = Persicaria punctata - FNA5
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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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Horticultural Information
Intro: Erect-ascending annual/short-lived perennial of swamp forests, bottomlands and marshes.
Stems: Stems branched, smooth, gland-dotted.
Leaves: Leaves alternate, petiolate and with a fringed, brown, membranous sheath (ocrea) where petiole joins stem; lance-shaped; 1 1/2-6 in. long; hairy on margins; lacking a red blotch; gland-dotted.
Inforescence:
Flowers: Flowers irregularly spaced on erect-ascending spikes (2-6 in. tall), white to greenish-white, less than 1/4 in. long, usually closed and consisting of 5 tepals that are gland-dotted.
Fruits:
Comments:
Height: 6-42 in.
plant sale text:
bloom table text:
description: Erect-ascending annual/short-lived perennial of swamp forests, bottomlands and marshes.
stems: Stems branched, smooth, gland-dotted.
leaves: Leaves alternate, petiolate and with a fringed, brown, membranous sheath (ocrea) where petiole joins stem; lance-shaped; 1 1/2-6 in. long; hairy on margins; lacking a red blotch; gland-dotted.
inflorescence:
flowers: Flowers irregularly spaced on erect-ascending spikes (2-6 in. tall), white to greenish-white, less than 1/4 in. long, usually closed and consisting of 5 tepals that are gland-dotted.
fruits:
comments:
cultural notes:
germination code:
native range:
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