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Hibbertia stricta; photograph (c) Lucas Christofides, some rights reserved (CC BY) CC BY(c) Lucas Christofides, some rights reserved (CC BY) · observed growing wild · 2026-03-15

Hibbertia stricta (DC.) R.Br. ex F.Muell.

Dilleniaceae · New South Wales, Northern Territory +5

Cited as Kew's World Checklist cites it, Hibbertia stricta (DC.) R.Br. ex F.Muell.: GBIF's backbone key for this page carries the name with another author, R.Br. ex DC.

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Hibbertia stricta, photograph (c) Lucas Christofides, some rights reserved (CC BY)Hibbertia stricta, photograph (c) Lucas Christofides, some rights reserved (CC BY)Hibbertia stricta, photograph (c) Guy Taseski, some rights reserved (CC BY)Hibbertia stricta, photograph (c) Guy Taseski, some rights reserved (CC BY)Hibbertia stricta, photograph (c) Guy Taseski, some rights reserved (CC BY)Hibbertia stricta, photograph (c) Guy Taseski, some rights reserved (CC BY) 98 photographs ›
Habitat figures
Cold floor (1 night in 100)
1.5°C
Record low -2.4 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
26°C
Jan and Feb at the habitat CHELSA
Rain a year (median across the range)
740mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
13–45DLI
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
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Hibbertia stricta is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small, usually upright shrub with hairy foliage, linear leaves and yellow flowers with six or seven stamens arranged around two woolly-hairy carpels.

Quoted from Wikipedia, "Hibbertia stricta", CC BY-SA 4.0.

About the genus · Hibbertia

Hibbertia, commonly known as guinea flowers, is a genus of flowering plants in the family Dilleniaceae. They are usually shrubs with simple leaves and flowers with five sepals and five petals that are usually yellow, but also sometimes orange, red, pink and white. There are about 400 species, most of which occur in Australia but a few species occur in New Guinea, New Caledonia, Fiji and Madagascar.

Quoted from Wikipedia, "Hibbertia", CC BY-SA 4.0.

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (510 mm of 698 mm) takes 8 months, May to December. Mean temperature moves 11.0 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: November to June.

Rain

698 mm in the median year at the habitat, 510 mm of it May to December. Wettest month June at 71 mm, driest month February at 44 mm. Across the grid cells of the range the year's total runs 471 mm to 1,166 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 740 mm, is the year's rain at the top of the page; the 698 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: 13 to 45 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 11, the highest 90th-percentile month 49).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 1.5 °C, the absolute minimum -2.4 °C, 27 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 39.9 °C. Monthly means: the coldest month's mean nightly low 6.1 °C in July (across the grid cells of the range 3.3 °C to 11.2 °C), the warmest month's mean daily high 26.2 °C in January and February (median year across the grid cells of the range, CHELSA). Cold floor: 1.5 °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: 56 to 62% 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 -12 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 Hibbertia stricta through the yearWarmest months January and February, mean daily high 26 °C; coldest month July, mean nightly low 6.1 °C; 698 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°frost39.9° 99th-percentile day, NASA POWER-2.4° lowest night in 44 years, NASA POWER°C · day and nightcold quarter050100150200mm rainDLI 13–45RH 56–62%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 935 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 °C26 / 22–3026 / 22–3023 / 21–2820 / 17–2516 / 14–2313 / 11–2013 / 11–2014 / 12–2116 / 14–2419 / 16–2722 / 18–2824 / 20–30
Night °C15 / 13–2216 / 13–2214 / 11–2011 / 9–189 / 7–157 / 4–126 / 3–117 / 4–128 / 6–1410 / 7–1712 / 9–1914 / 11–21
Rain mm47 / 19–12544 / 20–16848 / 22–11549 / 28–10761 / 41–10671 / 38–10766 / 33–9964 / 32–10158 / 32–8364 / 39–8566 / 31–10560 / 32–140
DLI45 / 40–4940 / 35–4432 / 30–3624 / 21–2916 / 14–2413 / 11–2214 / 12–2319 / 17–2927 / 25–3636 / 33–4141 / 40–4544 / 41–48
RH %56 / 50–6257 / 51–6357 / 53–6258 / 55–6161 / 57–6362 / 57–6661 / 55–6660 / 55–6359 / 54–6158 / 53–6057 / 52–6057 / 51–61
How this section is made
Each figure is the median across the 935 grid cells on land that hold in-range records (1583 records in those cells; 6 more cells hold records but no land by the elevation layer, so those records sit at sea and the cells are left out), 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 2540:6411 (-37.025, 140.575). Over 44 years there: absolute minimum -2.4 °C, 1st-percentile night 1.5 °C, 99th-percentile day 39.9 °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 935 distinct grid cells holding 1583 of the 1589 in-range records (6 further cells with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 2540:6411 (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 -37.00_140.625, lapse-corrected -12 m at 6.5 °C/km. Elevation: ETOPO 2022, 46 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.
NativeNew South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western 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-37.216, 142.269 · in the densest population, 815 records (47% of those in range)
Kew's description“subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 1723 georeferenced records inside the native range; the climate across the range on the 1583 of them in the land cells it reads, of 1589 placed to within 10 km; the map shows only the 1650 openly licensed ones, which alone would put the marker in the same place. 134 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay 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 inside the densest 2° block of the 1723 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Hibbertia stricta, photograph 1did not loadHibbertia stricta, photograph 2did not loadHibbertia stricta, photograph 3did not loadHibbertia stricta, photograph 4did not loadHibbertia stricta, photograph 5did not loadHibbertia stricta, photograph 6did not load

Photographs: (c) Lucas Christofides, some rights reserved (CC BY) (2); (c) Guy Taseski, some rights reserved (CC BY) (4).

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

Tricoryne elatior Tricoryne elatior Yellow autumn lily Photo: CC BY, desertnaturalistCotula australis Cotula australis Annual buttonweed Photo: CC BY, Aalbert RebergenBursaria spinosa Bursaria spinosa Sweet bursaria Photo: CC BY-SA, Greg Tasney Polypogon avenaceus Poaceae Dianella revoluta Dianella revoluta Black-anther Flax-lily Photo: CC BY, Thomas MesaglioLinum marginale Linum marginale Wild flax Photo: CC BY, grampianshiker

Other Hibbertia 18 in the reference

Hibbertia aspera Hibbertia aspera Dilleniaceae Photo: CC BY, Paul WhitingtonHibbertia crinita Hibbertia crinita Long-hair Guinea-flower Photo: CC BY-SA, Greg TasneyHibbertia cuneiformis Hibbertia cuneiformis Dilleniaceae Photo: CC0, author not statedHibbertia dentata Hibbertia dentata Trailing guinea-flower Photo: CC BY-SA, James K. DouchHibbertia diffusa Hibbertia diffusa Wedge Guinea Flower Photo: CC0, author not statedHibbertia empetrifolia Hibbertia empetrifolia Trailing guinea flower Photo: CC BY, Petra HollandHibbertia grossulariifolia Hibbertia grossulariifolia Dilleniaceae Photo: CC BY, Tyler AnthonyHibbertia obtusifolia Hibbertia obtusifolia Grey guinea flower Photo: CC BY-SA, Victor PhillipsHibbertia pedunculata Hibbertia pedunculata Stalked Guinea-flower Photo: CC BY, Thomas Mesaglio Hibbertia porcata Dilleniaceae Hibbertia procumbens Hibbertia procumbens Spreading Guinea Flower Photo: CC0, author not statedHibbertia racemosa Hibbertia racemosa Stalked Guinea Flower Photo: CC BY, Khands all 19 ›

Names & registers

GBIFPOWOIPNIWikidataWikipediaiNaturalist

The record

Family
Dilleniaceae
Described by
(DC.) R.Br. ex F.Muell.
Native to
New South Wales, Northern Territory, Queensland +4
Wild records
1723 in range · 1650 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 2026-10-22GBIF's key 8224437 is Hibbertia stricta R.Br. ex DC.; the page links Kew's Hibbertia stricta (DC.) R.Br. ex F.Muell., and the name is cited as Kew cites it
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; 13 records within 1 km of a botanic garden, herbarium or zoo left out (12 at a botanic garden or arboretum, 1 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -37.00_140.625, lapse-corrected -12 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22found by its label; its IPNI identifier 77130611-1 is Kew's for Hibbertia stricta (DC.) R.Br. ex F.Muell.
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
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 27 datasets via GBIF.org; each carries its own licence.

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