Tripleurospermum maritimum(L.) W.D.J.Koch

false mayweedscentless mayweedsea mayweed

WFO wfo-0000063085 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Tripleurospermum maritimum, photographed by Zeke Marshall
fig. a Zeke Marshall, CC BY 4.0 / 2022-05-12 / obs. 197083291
Tripleurospermum maritimum, photographed by Zeke Marshall
fig. b Zeke Marshall, CC BY 4.0 / obs. 197184741
Tripleurospermum maritimum, photographed by Zeke Marshall
fig. c Zeke Marshall, CC BY 4.0 / obs. 197185900
Tripleurospermum maritimum, photographed by Susan Marley
fig. d Susan Marley, CC BY 4.0 / obs. 193095130
Tripleurospermum maritimum, photographed by Stephen James McWilliam
fig. e Stephen James McWilliam, CC0 1.0 / obs. 194259728
Tripleurospermum maritimum, photographed by Stephen James McWilliam
fig. f Stephen James McWilliam, CC0 1.0 / obs. 194260071
Tripleurospermum maritimum, photographed by Stephen James McWilliam
fig. g Stephen James McWilliam, CC0 1.0 / obs. 192443143
Tripleurospermum maritimum, photographed by Stephen James McWilliam
fig. h Stephen James McWilliam, CC0 1.0 / obs. 180475363

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 20 botanical countries

Regions where Tripleurospermum maritimum is native: Azores, Baltic States, Belgium, Denmark, Finland, Føroyar, France, Germany, Great Britain, Hungary, Iceland, Ireland, Netherlands, Northwest European Russia, Norway, Poland, Portugal, Spain, Sweden, Greenland Baltic StatesBelgiumDenmarkFinlandFranceGermanyHungaryIcelandIrelandNetherlandsNorthwest European RussiaNorwayPolandPortugalSpainSwedenGreenland AzoresFøroyar
Native distribution of Tripleurospermum maritimum, 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
Baltic States BLT EUROPE
Belgium BGM
Denmark DEN
Finland FIN
Føroyar FOR
France FRA
Germany GER
Great Britain GRB
Hungary HUN
Iceland ICE
Ireland IRE
Netherlands NET
Northwest European Russia RUW
Norway NOR
Poland POL
Portugal POR
Spain SPA
Sweden SWE
Azores AZO AFRICA
Greenland GNL NORTHERN AMERICA

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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 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.

  • Chamaemelum inodorum var. maritimum (L.) Rchb.
  • Chamaemelum inodorum var. salinum (Wallr.) Rchb.
  • Chamaemelum maritimum Boiss.
  • Chamaemelum maritimum (L.) Willk.
  • Chamomilla maritima (L.) Rydb.
  • Chrysanthemum elegans Steud.
  • Chrysanthemum maritimum (L.) Cav.
  • Matricaria maritima L.
  • Matricaria maritima f. maritima
  • Matricaria maritima subsp. maritima
  • Matricaria maritima var. maritima
  • Tripleurospermum inodorum var. maritimum (L.) Sch.Bip.
  • Tripleurospermum maritimum var. maritimum

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.