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Juncus balticus Willdenow ssp. littoralis (Engelmann) Snogerup. Subgenus: Agathryon. Section: Juncotypus. Common name: Baltic Rush. Phenology: May-Oct. Habitat: Open calcareous wetlands (fens), prairies. Distribution: The species is circumboreal; ssp. littoralis is North American: NL (Labrador) west to BC, south to NY (Long Island), NJ, PA, w. VA, OH, IN, MO, and KS.

ID notes: Of our members of section Genuini (species with a lateral inflorescence), Juncus balticus ssp. littoralis can be distinguished by its acute capsules, stout creeping rhizome, dark perianth, and upwardly sweeping inflorescence branches.

Origin/Endemic status: Native

Synonymy ⓘ: = AqW, Can, K4, Mi, NE, NY, Kirschner (2002b), Zika (2013); = Agathryon balticum (Willd.) Záv.Drábk. & Proćków ssp. littorale (Engelm.) Záv.Drábk. & Proćków — Proćków & Záveská Drábková (2023); = Juncus arcticus Willd. var. littoralis (Engelm.) Boivin — C, Pa; = Juncus balticus Willd. var. littoralis Engelm. — F, G, GrPl, Mo1, Tx, Va; = n/a — Tat; < Juncus arcticus Willd. var. balticus (Willd.) Trautv. — FNA22, Il; < Juncus balticus Willd. — WV. Basionym: Juncus balticus Willd. var. littoralis Engelm. 1866

Links to other floras: < Juncus arcticus var. balticus - FNA22

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Wetland Indicator Status:

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

Heliophily ⓘ: 9

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Richard LeBlond CC-BY | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷

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Horticultural Information

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