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Juncus alpinoarticulatus Chaix ssp. americanus (Farwell) Hämet-Ahti. Subgenus: Juncus. Section: Ozophyllum. Common name: Northern Green Rush. Habitat: Shores, calcareous seeps, including slumps along Lake Erie. Distribution: Greenland, NL, NT, and AK, south to ME, n. NH, n. VT, NY, nw. PA, n. OH, n. IN, ne. IL, w. MO, NE, n. AZ, s. UT, and WA; ne. Asia.

ID notes: Juncus alpinoarticulatus is much like J. articulatus but separated by the rounded to obtuse capsules and stiffly ascending inflorescence branches. Juncus alpinoarticulatus ssp. americanus is distinguished from ssp. fuscescens in having individual long-pedicellate (2-4 mm long) flowers.

Origin/Endemic status: Native

Synonymy ⓘ: = K4, NE, NeUS, NY; Juncus alpinus Vill. var. americanus Farw.; = Verojuncus alpinoarticulatus (Chaix) Záv.Drábk. & Proćków ssp. americanus (Farw.) Záv.Drábk. & Proćków — Proćków & Záveská Drábková (2023); < Juncus alpinoarticulatus Chaix — AqW, C, FNA22, Mi, Mo1; >< Juncus alpinoarticulatus Chaix ssp. fuscescens (Fernald) Hämet-Ahti — Il; >< Juncus alpinoarticulatus Chaix ssp. nodulosus (Wahlenb.) Hämet-Ahti — Pa; < Juncus alpinus Vill. — GrPl; >< Juncus alpinus Vill. var. fuscescens Fernald — F. Basionym: Juncus alpinus Vill. var. americanus Farw. 1928

Links to other floras: < Juncus alpinoarticulatus - FNA22

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Wetland Indicator Status:

  • Great Plains: OBL (taxonomic split from wetland indicator species)
  • Midwest: OBL (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: OBL (taxonomic split from wetland indicator species)

Heliophily ⓘ: 9

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image of plant© Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens source CC-BY-NC, permission granted to NCBG | Original Image ⭷ Warning: was NOT research grade.
image of plant© Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens source CC-BY-NC, permission granted to NCBG
image of plant© Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens source CC-BY-NC, permission granted to NCBG

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Horticultural Information

No horticultural data found for this taxon.