Bartonia paniculata(Michx.) Muhl.

twining screwstem

WFO wfo-0000560764 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Bartonia paniculata, photographed by Bonnie Semmling
fig. a Bonnie Semmling, CC BY 4.0 / 2021-09-19 / obs. 158520266
Bartonia paniculata, photographed by maureen_c-m
fig. b maureen_c-m, CC BY 4.0 / obs. 156880092
Bartonia paniculata, photographed by Mary E. Macaulay, P.Eng.
fig. c Mary E. Macaulay, P.Eng., CC BY 4.0 / obs. 154359489
Bartonia paniculata, photographed by Chris Hoess
fig. d Chris Hoess, CC BY-SA 4.0 / obs. 148017049
Bartonia paniculata, photographed by Will McFarland
fig. e Will McFarland, CC BY 4.0 / obs. 53677955
Bartonia paniculata, photographed by Will McFarland
fig. f Will McFarland, CC BY 4.0 / obs. 53778652
Bartonia paniculata, photographed by Will McFarland
fig. g Will McFarland, CC BY 4.0 / obs. 51439533
Bartonia paniculata, photographed by Jessica
fig. h Jessica, CC BY 4.0 / obs. 82264453

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 33 botanical countries

Regions where Bartonia paniculata is native: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, Nova Scotia, Oklahoma, Ontario, Pennsylvania, Rhode I., South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin AlabamaArkansasConnecticutFloridaGeorgiaIllinoisKentuckyLouisianaMaineMarylandMassachusettsMichiganMississippiMissouriNew BrunswickNew HampshireNew JerseyNew YorkNewfoundlandNorth CarolinaNova ScotiaOklahomaOntarioPennsylvaniaSouth CarolinaTennesseeTexasVirginiaWest VirginiaWisconsin DelawareDistrict of ColumbiaRhode I.
Native distribution of Bartonia paniculata, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Connecticut CNT
Delaware DEL
District of Columbia WDC
Florida FLA
Georgia GEO
Illinois ILL
Kentucky KTY
Louisiana LOU
Maine MAI
Maryland MRY
Massachusetts MAS
Michigan MIC
Mississippi MSI
Missouri MSO
New Brunswick NBR
New Hampshire NWH
New Jersey NWJ
New York NWY
Newfoundland NFL
North Carolina NCA
Nova Scotia NSC
Oklahoma OKL
Ontario ONT
Pennsylvania PEN
Rhode I. RHO
South Carolina SCA
Tennessee TEN
Texas TEX
Virginia VRG
West Virginia WVA
Wisconsin WIS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 14 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Andrewsia paniculata (Michx.) W.P.C.Barton
  • Bartonia iodandra Rob.
  • Bartonia iodandra var. sabulonensis Fernald
  • Bartonia lanceolata Small
  • Bartonia paniculata (Michx.) B.L.Rob.
  • Bartonia paniculata var. intermedia Fernald
  • Bartonia paniculata var. iodandra (Rob.) Fernald
  • Bartonia paniculata var. sabulonensis Fernald
  • Bartonia tenella var. brachiata Alph.Wood
  • Bartonia texana Correll
  • Bartonia virginica var. paniculata (Michx.) B.Boivin
  • Bartonia virginica var. sabulonensis (Fernald) B.Boivin
  • Centaurella paniculata Michx.
  • Centaurium autumnale Pers.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.