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Dichanthelium aculeatum (A.S. Hitchcock & Chase) LeBlond. Prickly Witchgrass. Phen: May-Sep (-later?). Hab: Near rivers, lakes, and swamps in open to wooded areas. Dist: Scattered from NY and MA south to NC and w. to OH. Last collected in 1989 on Cape Cod, and uncommon to rare throughout its range.

Origin/Endemic status: Native

Taxonomy Comments: Superficially resembles D. scabriusculum, which has an entirely membranous ligule, a scabrous peduncle, and shorter spikelet features. Not treated in RAB and regarded as a putative hybrid by FNA.

Other Comments: See LeBlond (2019a) for additional, detailed information.

Synonymy: = LeBlond (2019a) in Weakley et al (2019a); = n/a – FNA25, RAB, Tat; = Panicum aculeatum Hitchc. & Chase – F, G, HC, S; < Dichanthelium scabriusculum (Elliott) Gould & C.A.Clark – K1, K3, K4, Va, Gould & Clark (1978); < Panicum scabriusculum Elliott – C

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Wetland Indicator Status:

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

Heliophily: 7

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image of plant© Eric Ungberg, all rights reserved, uploaded by Eric Ungberg source | Original Image ⭷
image of plant© Eric Ungberg, all rights reserved, uploaded by Eric Ungberg source | Original Image ⭷
image of plant© Eric Ungberg, all rights reserved, uploaded by Eric Ungberg source | Original Image ⭷
image of plant© Eric Ungberg, all rights reserved, uploaded by Eric Ungberg source | Original Image ⭷
image of plant© Eric Ungberg, all rights reserved, uploaded by Eric Ungberg source | Original Image ⭷

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