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Xanthium speciosum Kearney. Section: Xanthium. Phenology: Jul-Aug; Sep-Oct. Habitat: Disturbed areas, prairies, roadsides. Distribution: MN to SD, south to MO, OK, TX, and Mexico.

Origin/Endemic status: Native

Synonymy : = F, Il; >< Xanthium italicum Moretti — F, Tat; < Xanthium orientale L. — Tomasello (2018); < Xanthium strumarium L. — FNA21, GW2, K4, Mex, Mo2, Pa, Tn, Tx, Va, WH3; < Xanthium strumarium L. ssp. cavanillesii (Schouw) D.Löve & Dans. var. cavanillesii — Löve & Dansereau (1959); < Xanthium strumarium L. var. canadense (Mill.) Torr. & A.Gray — C, G, GrPl, SE1, W. Basionym: Xanthium speciosum Kearney 1897

Links to other floras: < Xanthium strumarium - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FAC (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 : 9

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Horticultural Information

No horticultural data found for this taxon.

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