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Thomasia macrocarpa; photograph smathichong, CC BY, iNaturalist via GBIF CC BYsmathichong, CC BY, iNaturalist via GBIF

Thomasia macrocarpa Hügel

Large-fruited thomasia

Malvaceae · Western Australia

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Thomasia macrocarpa, photograph smathichong, CC BY, iNaturalist via GBIFThomasia macrocarpa, photograph Millie Brady, CC BY, iNaturalist via GBIFThomasia macrocarpa, photograph pimelea, CC BY, iNaturalist via GBIFThomasia macrocarpa, photograph pimelea, CC BY, iNaturalist via GBIFThomasia macrocarpa, photograph pimelea, CC BY, iNaturalist via GBIFThomasia macrocarpa, photograph pimelea, CC BY, iNaturalist via GBIF 24 photographs ›
Habitat figures
Cold floor (1 night in 100)
2.8°C
Record low -0.9 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
32°C
Jan at the habitat CHELSA
Rain a year (median across the range)
831mm
8 months of 25 mm or more in the median year CHELSA
Open-sky light
16–53DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Wet winters: the rain comes November to March (May to September at the habitat), read as a winter growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Thomasia macrocarpa, commonly known as large-fruited thomasia, is a shrub that is endemic to the southwest of Western Australia.

Quoted from Wikipedia, "Thomasia macrocarpa", CC BY-SA 4.0.

Cultivation

Seasons

The rain rule reads a winter growing season: 70% of the median year's rain (663 mm of 828 mm) falls in May to September, cooler than the year (wet-season mean 13.5 °C against a yearly mean of 17.9 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: November to March.

Rain

828 mm in the median year at the habitat, 663 mm of it May to September. Wettest month June at 167 mm, driest month December at 10 mm. Across the grid cells of the range the year's total runs 767 mm to 951 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 831 mm, is the year's rain at the top of the page; the 828 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, southern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 16 to 53 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 15, the highest 90th-percentile month 53).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 2.8 °C, the absolute minimum -0.9 °C, 1 frost night in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 42.2 °C. Monthly means: the coldest month's mean nightly low 8.0 °C in August (across the grid cells of the range 6.8 °C to 10.5 °C), the warmest month's mean daily high 31.5 °C in January (median year across the grid cells of the range, CHELSA). Cold floor: 2.8 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 49 to 60% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.

How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.

Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Temperature. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected -104 m to its elevation; CHELSA monthly means, median year across the grid cells of the range. The cold floor is the 1st-percentile night named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity. CHELSA relative humidity, median year across the grid cells of the range.

Climate across the habitat

Habitat months, southern hemisphere

Habitat climate of Thomasia macrocarpa through the yearWarmest month January, mean daily high 32 °C; coldest month August, mean nightly low 8.0 °C; 828 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, southern hemisphere.-10°0°10°20°30°40°50°frost42.2° 99th-percentile day, NASA POWER-0.9° lowest night in 44 years, NASA POWER°C · day and nightcold quarter050100150200mm rainDLI 16–53RH 49–60%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 17 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C32 / 27–3231 / 28–3229 / 26–2925 / 23–2520 / 19–2117 / 16–1816 / 15–1716 / 16–1718 / 17–1921 / 19–2225 / 23–2629 / 25–29
Night °C18 / 17–1818 / 17–1916 / 15–1714 / 13–1511 / 10–139 / 8–128 / 7–118 / 7–119 / 8–1111 / 10–1214 / 13–1516 / 15–17
Rain mm12 / 12–1313 / 13–1421 / 21–2439 / 36–45106 / 100–123167 / 152–193166 / 153–194138 / 126–15986 / 75–9842 / 37–4828 / 26–3410 / 9–11
DLI53 / 52–5347 / 46–4739 / 38–3928 / 27–2820 / 19–2016 / 15–1617 / 16–1722 / 21–2230 / 29–3041 / 39–4148 / 47–4853 / 52–53
RH %49 / 49–5249 / 49–5250 / 50–5354 / 53–5656 / 56–5859 / 58–6060 / 58–6059 / 58–6058 / 57–5955 / 55–5652 / 52–5551 / 50–53
How this section is made
Each figure is the median across the 17 grid cells holding the 51 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 2439:5920 (-31.975, 116.025). Over 44 years there: absolute minimum -0.9 °C, 1st-percentile night 2.8 °C, 99th-percentile day 42.2 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 17 distinct grid cells holding 51 of the 51 in-range records; extremes and elevation at the typical cell 2439:5920 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell -32.00_116.250, lapse-corrected -104 m at 6.5 °C/km. Elevation: ETOPO 2022, 110 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeWestern Australia · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker-31.997, 116.029 · in the densest population, 52 records (100% of those in range)
Kew's description“shrub” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 52 georeferenced records inside the native range; the climate across the range on the 51 of them placed to within 10 km; the map shows only the 13 openly licensed ones, which alone would put the marker 6 km away. 1 in-range record is placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stays on the map but off the climate.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 52 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Thomasia macrocarpa, photograph 1did not loadThomasia macrocarpa, photograph 2did not loadThomasia macrocarpa, photograph 3did not loadThomasia macrocarpa, photograph 4did not loadThomasia macrocarpa, photograph 5did not loadThomasia macrocarpa, photograph 6did not load

Photographs: smathichong, CC BY, iNaturalist via GBIF; Millie Brady, CC BY, iNaturalist via GBIF; pimelea, CC BY, iNaturalist via GBIF (4).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Drosera miniata Drosera miniata Droseraceae Photo: CC BY, Hugo InnesAnigozanthos viridis Anigozanthos viridis Green kangaroo-paw Photo: CC BY, Hugo Innes Drosera bulbigena Droseraceae Grevillea flexuosa Grevillea flexuosa Tangled Grevillea Photo: CC BY, Malcolm SimardGrevillea endlicheriana Grevillea endlicheriana Spindly Grevillea Photo: CC BY, smathichong Melaleuca eriocarpa Myrtaceae

Other Thomasia 3 in the reference

Thomasia grandiflora Thomasia grandiflora Large flowered thomasia Photo: CC BY, Peter CrowcroftThomasia petalocalyx Thomasia petalocalyx Paper flower Photo: CC BY, Jane CanawayThomasia pygmaea Thomasia pygmaea Tiny thomasia Photo: CC BY, Ian McMaster

Names & registers

Also known as Lasiopetalum macrocarpum; Leucothamnus montanus; Thomasia stipulacea. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipedia

The record

Family
Malvaceae
Described by
Hügel
Native to
Western Australia
Wild records
52 in range · 13 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -32.00_116.250, lapse-corrected -104 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22found by its label; its IPNI identifier 825650-1 is Kew's for Thomasia macrocarpa Hügel
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist taxon inat.taxon not asked
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 1 datasets via GBIF.org; each carries its own licence.

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