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Chasmanthium sessiliflorum (Poiret) Yates var. 1 . Coastal Hammock Longleaf Spikegrass. Phen: Aug-Oct. Hab: Calcareous hammocks. Dist: E. SC south to n. FL.

ID notes: Characterized by divergent panicle branches and occurs in outer Coastal Plain calcareous sites (J. Allison, pers. comm.).

Origin/Endemic status: Endemic

Taxonomy Comments: This additional taxon warrants recognition;

Synonymy: < Chasmanthium laxum (L.) Yates var. sessiliflorum (Poir.) L.G.Clark – Wipff & Jones (1994); < Chasmanthium sessiliflorum (Poir.) Yates – C, ETx1, FlGr, FNA25, GW1, K1, K3, K4, Yates (1966a), Yates (1966c); < Uniola longifolia Scribn. – S, S13; < Uniola sessiliflora Poir. – F, G, HC, RAB

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Great Plains: FAC (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)

Heliophily ?: 4

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image of plant© Melanie Flood | Original Image ⭷
image of plant© Melanie Flood | Original Image ⭷
image of plant© Melanie Flood | Original Image ⭷
image of plant© Melanie Flood | Original Image ⭷

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