Taxon:  Ageratina roanensis (Small) E. E. Lamont



Summary
Genus:
Ageratina
Family:
Asteraceae (alt. Compositae)
Subfamily:
Asteroideae
Tribe:
Eupatorieae
Subtribe:
Oyxlobinae
Nomen number:
513463
Place of publication:
Phytoneuron 2018-77:1.  2018
Verified:
10/05/2026 ARS Systematic Botanists.
Accessions:
1 (1  active, 0  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Eupatorium roanense Small

Homotypic Synonym(s)
Ageratina altissima (L.) R. M. King & H. Rob. var. roanensis (Small) Clewell & Wooten

No images


Conservation Status

Reference(s)
  1. Lamont, E. E. 2018. Ageratina roanensis (Asteraceae), a new combination for an endemic species from the southern Appalachian Mountains. Phytotaxa 2018-77:1-3.
Common names
LanguageNameAlternate namenoteseqCitation
English (US)Appalachian white snakeroot as Ageratina altissima var. roanensis2FNA Editorial Committee. 1993-. Flora of North America. Note: as Ageratina altissima var. roanensis
Distribution
order_codeStatusContinentSubcontinentCountryStateNoteReference
1NativeNorthern AmericaNortheastern U.S.A.United StatesWest Virginia FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesAlabama FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesGeorgia FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesKentucky FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesNorth Carolina FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesSouth Carolina FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesTennessee FNA Editorial Committee. 1993-. Flora of North America.
1NativeNorthern AmericaSoutheastern U.S.A.United StatesVirginia FNA Editorial Committee. 1993-. Flora of North America.
Native
Northern America
  • NORTHEASTERN U.S.A.: United States [West Virginia]
  • SOUTHEASTERN U.S.A.: United States [Alabama, Georgia, Kentucky, North Carolina, South Carolina, Virginia, Tennessee]

Reference(s)
  1. FNA Editorial Committee. 1993-. Flora of North America.
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=513463. Accessed 26 October 2026.