Grona heterocarpos(L.) H.Ohashi & K.Ohashi

Asian ticktrefoil

WFO wfo-0001423638 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Grona heterocarpos, photographed by Jacy Chen
fig. a Jacy Chen, CC BY 4.0 / 2021-10-07 / obs. 174062871

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 42 botanical countries

Regions where Grona heterocarpos is native: Tanzania, China South-Central, China Southeast, Hainan, Japan, Korea, Nansei-shoto, Taiwan, Andaman Is., Assam, Bangladesh, Borneo, Cambodia, East Himalaya, India, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nepal, New Guinea, Nicobar Is., Philippines, Sri Lanka, Sulawesi, Sumatera, Thailand, Vietnam, West Himalaya, New South Wales, Northern Territory, Queensland, Western Australia, Caroline Is., Fiji, New Caledonia, Samoa, Tonga, Vanuatu, Wallis-Futuna Is. TanzaniaChina South-CentralChina SoutheastHainanJapanTaiwanAssamBangladeshBorneoCambodiaEast HimalayaIndiaJawaLaosLesser Sunda Is.MalayaMalukuMyanmarNepalNew GuineaPhilippinesSri LankaSulawesiSumateraThailandVietnamWest HimalayaNew South WalesNorthern TerritoryQueenslandWestern AustraliaFijiNew Caledonia KoreaNansei-shotoAndaman Is.Nicobar Is.Caroline Is.SamoaTongaVanuatuWallis-Futuna Is.
Native distribution of Grona heterocarpos, 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
Andaman Is. AND ASIA-TROPICAL
Assam ASS
Bangladesh BAN
Borneo BOR
Cambodia CBD
East Himalaya EHM
India IND
Jawa JAW
Laos LAO
Lesser Sunda Is. LSI
Malaya MLY
Maluku MOL
Myanmar MYA
Nepal NEP
New Guinea NWG
Nicobar Is. NCB
Philippines PHI
Sri Lanka SRL
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
West Himalaya WHM
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS
Hainan CHH
Japan JAP
Korea KOR
Nansei-shoto NNS
Taiwan TAI
Caroline Is. CRL PACIFIC
Fiji FIJ
New Caledonia NWC
Samoa SAM
Tonga TON
Vanuatu VAN
Wallis-Futuna Is. WAL
New South Wales NSW AUSTRALASIA
Northern Territory NTA
Queensland QLD
Western Australia WAU
Tanzania TAN AFRICA

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 41 in flower of 53 examined

Proportion of examined Grona heterocarpos in flower, by month
Month In flower Examined Share 95% interval
Jan 1 1 too few examined
Feb 1 2 too few examined
Mar 1 1 too few examined
Apr 1 1 too few examined
May 0 1 too few examined
Jun 1 2 too few examined
Jul 1 2 too few examined
Aug 4 5 80% 38% to 96%
Sep 12 16 75% 51% to 90%
Oct 10 11 91% 62% to 98%
Nov 6 7 86% 49% to 97%
Dec 3 4 too few examined

Peak flowering in Oct. Each bar is the share of Grona heterocarpos 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. 41 of 53 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 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.

Where it actually grows measured, from 333 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 8.9 °C 13.0 °C 23.9 °C
Warmest month, mean daily high 26.7 °C 29.8 °C 32.9 °C
Annual rainfall 1,513 mm 2,736 mm 4,215 mm
Rainfall in the driest quarter 4 mm 180 mm 727 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 333 research-grade observations of Grona heterocarpos that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 46 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.

  • Desmodium buergeri Miq.
  • Desmodium buergeri var. patulepilosum Ohwi
  • Desmodium distans Royle ex Baker
  • Desmodium gyroides Hassk.
  • Desmodium heterocarpon (L.) DC.
  • Desmodium heterocarpon f. albiflorum (Ridl.) H.Ohashi
  • Desmodium heterocarpon f. strigosum (Meeuwen) Fosberg
  • Desmodium heterocarpon subsp. heterocarpon
  • Desmodium heterocarpon var. buergeri (Miq.) Hosok.
  • Desmodium heterocarpon var. gymnocarpum Schindl.
  • Desmodium heterocarpon var. heterocarpon
  • Desmodium heterocarpon var. patulepilosum (Ohwi) Ohwi
  • Desmodium heterocarpon var. strigosum Meeuwen
  • Desmodium heterocarpum (L.) DC.
  • Desmodium heterophyllum var. buergeri (Miq.) Hosok.
  • Desmodium hippocrepis DC.
  • Desmodium nervosum Vogel
  • Desmodium patens G.Don ex Wight
  • Desmodium polycarpon (Poir.) DC.
  • Desmodium polycarpon f. hirsutum Pamp.
  • Desmodium polycarpon var. albiflorum Ridl.
  • Desmodium polycarpon var. trichocaulum (DC.) Benth.
  • Desmodium polycarpum (Poir.) DC.
  • Desmodium polycarpum var. trichocaulon (DC.) Baker

and 22 more.

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.