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Stenanthium gramineum (Ker Gawler) Morong var. robustum (S. Watson) Fernald. Bog Featherbells. Phen: Jul-early Sep; Aug-Oct. Hab: Bogs and wet meadows. Dist: PA west to IN, south to w. NC.

Origin/Endemic status: Endemic

Taxonomy Comments: Braun (1969) asserted that "var. gramineum blooms 2 weeks to a month sooner than var. robustum in Ohio; the two do not occur in the same patch". Cook (2020) favored species rank for this taxon.

Synonymy: = F, K1, Oh1, WV; = n/a – Tat; = Stenanthium robustum S.Watson – S, S13, Cook (2020); < Stenanthium gramineum (Ker Gawl.) Morong – C, FNA26, G, K4, Pa, RAB, Va, W

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FACW (taxonomic split from wetland indicator species)
  • Great Plains: FAC (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)

Heliophily ?: 8

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image of plant© Will Stuart Jr. | Original Image ⭷
image of plant© Will Stuart Jr. | Original Image ⭷

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