Commersonia bartramia(L.) Merr.

Brown kurrajongbrown kurrajong

WFO wfo-0000617045 Accepted WFO 2026-06 8 photographs CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Commersonia bartramia, photographed by Greg Tasney
fig. a Greg Tasney, CC BY-SA 4.0 / 2022-06-05 / obs. 203470016

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 27 botanical countries

Regions where Commersonia bartramia is native: China South-Central, China Southeast, Hainan, Bismarck Archipelago, Borneo, Cambodia, Jawa, Laos, Malaya, Maluku, Myanmar, New Guinea, Philippines, Solomon Is., Sulawesi, Sumatera, Thailand, Vietnam, New South Wales, Queensland, Caroline Is., Fiji, New Caledonia, Samoa, Santa Cruz Is., Vanuatu, Wallis-Futuna Is. China South-CentralChina SoutheastHainanBismarck ArchipelagoBorneoCambodiaJawaLaosMalayaMalukuMyanmarNew GuineaPhilippinesSolomon Is.SulawesiSumateraThailandVietnamNew South WalesQueenslandFijiNew Caledonia Caroline Is.SamoaVanuatuWallis-Futuna Is.
Native distribution of Commersonia bartramia, 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
Bismarck Archipelago BIS ASIA-TROPICAL
Borneo BOR
Cambodia CBD
Jawa JAW
Laos LAO
Malaya MLY
Maluku MOL
Myanmar MYA
New Guinea NWG
Philippines PHI
Solomon Is. SOL
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
Caroline Is. CRL PACIFIC
Fiji FIJ
New Caledonia NWC
Samoa SAM
Santa Cruz Is. SCZ
Vanuatu VAN
Wallis-Futuna Is. WAL
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS
Hainan CHH
New South Wales NSW AUSTRALASIA
Queensland QLD

Not drawn on the map: Santa Cruz Is.. 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.

Flowering 37 in flower of 64 examined

Proportion of examined Commersonia bartramia in flower, by month
Month In flower Examined Share 95% interval
Jan 12 15 80% 55% to 93%
Feb 4 6 67% 30% to 90%
Mar 2 6 33% 10% to 70%
Apr 3 4 too few examined
May 2 5 40% 12% to 77%
Jun 1 6 17% 3% to 56%
Jul 0 0 too few examined
Aug 0 2 too few examined
Sep 1 4 too few examined
Oct 1 2 too few examined
Nov 0 2 too few examined
Dec 11 12 92% 65% to 99%

Peak flowering in Dec. Each bar is the share of Commersonia bartramia 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. 37 of 64 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 6 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 15 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.

  • Byttneria caledonica Turcz.
  • Byttneria hypoleuca Turcz.
  • Commersonia echinata J.R.Forst. & G.Forst.
  • Commersonia echinata var. bancroftii F.M.Bailey
  • Commersonia echinata var. javana Gagnep.
  • Commersonia echinata var. platyphylla (Andrews) Gagnep.
  • Commersonia javensis G.Don
  • Commersonia platyphylla Andrews
  • Commersonia platyphylla var. lechenaultii DC.
  • Commersonia rhamnoides (Seem.) Christenh. & Byng
  • Muntingia bartramia L.
  • Pimia rhamnoides Seem.
  • Restiaria echinata Kuntze
  • Restiaria echinata var. platyphylla (Andrews) Kuntze
  • Ricinus odoratus Noronha

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.