Acmella repensRich. ex Pers.

WFO wfo-0000077798 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Acmella repens, photographed by Liliana Ramírez-Freire
fig. a Liliana Ramírez-Freire, CC BY 4.0 / 2022-05-01 / obs. 194073885
Acmella repens, photographed by Rich Sommer
fig. b Rich Sommer, CC BY 4.0 / obs. 195183031
Acmella repens, photographed by Zazil Dellamary
fig. c Zazil Dellamary, CC BY 4.0 / obs. 183185528
Acmella repens, photographed by Annika Lindqvist
fig. d Annika Lindqvist, CC BY 4.0 / obs. 178028391
Acmella repens, photographed by Tom Field
fig. e Tom Field, CC BY 4.0 / obs. 169044647
Acmella repens, photographed by Kim
fig. f Kim, CC BY 4.0 / obs. 167444344
Acmella repens, photographed by Susana De la Torre Zavala
fig. g Susana De la Torre Zavala, CC BY 4.0 / obs. 163923119
Acmella repens, photographed by natalie
fig. h natalie, CC0 1.0 / obs. 163687699

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 31 botanical countries

Regions where Acmella repens is native: Alabama, Arkansas, Florida, Georgia, Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Honduras, Nicaragua, Panamá, Paraguay, Peru, Venezuela AlabamaArkansasFloridaGeorgiaLouisianaMexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestMississippiMissouriNorth CarolinaOklahomaSouth CarolinaTennesseeTexasBoliviaColombiaCosta RicaCubaEcuadorEl SalvadorGuatemalaHondurasNicaraguaPanamáParaguayPeruVenezuela
Native distribution of Acmella repens, 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.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Florida FLA
Georgia GEO
Louisiana LOU
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Mississippi MSI
Missouri MSO
North Carolina NCA
Oklahoma OKL
South Carolina SCA
Tennessee TEN
Texas TEX
Bolivia BOL SOUTHERN AMERICA
Colombia CLM
Costa Rica COS
Cuba CUB
Ecuador ECU
El Salvador ELS
Guatemala GUA
Honduras HON
Nicaragua NIC
Panamá PAN
Paraguay PAR
Peru PER
Venezuela VEN

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.

Flowering 357 in flower of 365 examined

Peak flowering in Jan. Each bar is the share of Acmella repens observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 357 of 365 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 20 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.

  • Acmella nuttaliana Raf.
  • Acmella occidentalis Nutt.
  • Acmella oppositifolia var. oppositifolia
  • Acmella oppositifolia var. repens (Walter) R.K.Jansen
  • Anthemis repens Walter
  • Ceratocephalus beccabunga Kuntze
  • Spilanthes americana f. lanitecta A.H.Moore
  • Spilanthes americana var. repens (Walter) A.H.Moore
  • Spilanthes beccabunga var. parvula B.L.Rob.
  • Spilanthes cocuyensis Cuatrec.
  • Spilanthes diffusa Poepp. & Endl.
  • Spilanthes diffusa var. diffusa
  • Spilanthes disciformis B.L.Rob.
  • Spilanthes disciformis var. phaneractis Greenm.
  • Spilanthes lateraliflora Klatt
  • Spilanthes lehmanniana Klatt
  • Spilanthes nuttallii Torr. & A.Gray
  • Spilanthes orizabaensis Sch.Bip. ex Klatt
  • Spilanthes phaneractis (Greenm.) A.H.Moore
  • Spilanthes subhirsuta DC.

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. 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.