Acmella uliginosa(Sw.) Cass.

WFO wfo-0000132960 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Acmella uliginosa, photographed by chiuluan
fig. a chiuluan, CC BY 4.0 / 2022-05-30 / obs. 201943597
Acmella uliginosa, photographed by chiuluan
fig. b chiuluan, CC BY 4.0 / obs. 193789261
Acmella uliginosa, photographed by 葉子
fig. c 葉子, CC0 1.0 / obs. 190236795
Acmella uliginosa, photographed by chiuluan
fig. d chiuluan, CC BY 4.0 / obs. 179232386
Acmella uliginosa, photographed by 高山田鼠
fig. e 高山田鼠, CC BY 4.0 / obs. 123769184
Acmella uliginosa, photographed by 黃美滿
fig. f 黃美滿, CC BY 4.0 / obs. 118693244
Acmella uliginosa, photographed by chiuluan
fig. g chiuluan, CC BY 4.0 / obs. 115765483
Acmella uliginosa, photographed by 葉子
fig. h 葉子, CC0 1.0 / obs. 116749105

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 18 botanical countries

Regions where Acmella uliginosa is native: Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Colombia, Dominican Republic, French Guiana, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Panamá, Suriname, Trinidad-Tobago, Venezuela, Windward Is. BoliviaBrazil NorthBrazil NortheastBrazil SoutheastBrazil West-CentralColombiaDominican RepublicFrench GuianaGuyanaHaitiHondurasJamaicaPanamáSurinameTrinidad-TobagoVenezuela Leeward Is.Windward Is.
Native distribution of Acmella uliginosa, 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
Bolivia BOL SOUTHERN AMERICA
Brazil North BZN
Brazil Northeast BZE
Brazil Southeast BZL
Brazil West-Central BZC
Colombia CLM
Dominican Republic DOM
French Guiana FRG
Guyana GUY
Haiti HAI
Honduras HON
Jamaica JAM
Leeward Is. LEE
Panamá PAN
Suriname SUR
Trinidad-Tobago TRT
Venezuela VEN
Windward Is. WIN

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 115 in flower of 115 examined

Peak flowering in Jan. Each bar is the share of Acmella uliginosa 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. 115 of 115 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 13 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.

  • Calea savannarum Standl. & Steyerm.
  • Ceratocephalus acmella var. depauperata Kuntze
  • Coreopsis acmella var. uliginosa (Sw.) E.H.L.Krause
  • Jaegeria uliginosa (Sw.) Spreng.
  • Spilanthes acmella var. uliginosa (Sw.) Baker
  • Spilanthes charitopis A.H.Moore
  • Spilanthes iabadicensis A.H.Moore
  • Spilanthes lundii DC.
  • Spilanthes lundii DeCandolle
  • Spilanthes salzmannii DC.
  • Spilanthes uliginosa Sw.
  • Spilanthes uliginosa var. discoidea Aristeg.
  • Spilanthes uliginosa var. uliginosa

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.