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Retrophyllum comptonii; photograph Irisa Hudson, CC BY, iNaturalist via GBIF CC BYIrisa Hudson, CC BY, iNaturalist via GBIF

Retrophyllum comptonii (J.Buchholz) C.N.Page

Podocarpaceae · New Caledonia

Cited as Kew's World Checklist cites it, Retrophyllum comptonii (J.Buchholz) C.N.Page: GBIF's backbone key for this page carries the name with another author, (J.T.Buchholz) C.N.Page.

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Retrophyllum comptonii, photograph Irisa Hudson, CC BY, iNaturalist via GBIFRetrophyllum comptonii, photograph Irisa Hudson, CC BY, iNaturalist via GBIFRetrophyllum comptonii, photograph Irisa Hudson, CC BY, iNaturalist via GBIFRetrophyllum comptonii, photograph Denis.prévôt, CC BY-SA 3.0, via Wikimedia CommonsRetrophyllum comptonii, photograph Denis.prévôt, CC BY-SA 3.0, via Wikimedia Commons 6 photographs ›
Habitat figures
Cold floor (1 night in 100)
15.1°C
Record low 13.5 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
26°C
Feb at the habitat CHELSA
Rain a year (median across the range)
2,363mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
20–41DLI
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 summers: the rain comes June to December (December to June at the habitat), read as a summer growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Retrophyllum comptonii is a species of conifer in the family Podocarpaceae. It is a tree endemic to New Caledonia.

Quoted from Wikipedia, "Retrophyllum comptonii", CC BY-SA 4.0.

About the genus · Retrophyllum

Retrophyllum is a genus of conifers in the family Podocarpaceae. It contains five generally recognized extant species with a disjunct distribution in the Southern Hemisphere, found in Papuasia and also in South America. Retrophyllum are trees and shrubs typically occurring in tropical rainforests and cloud forests.

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

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,785 mm of 2,379 mm) falls in December to June, warmer than the year (wet-season mean 22.3 °C against a yearly mean of 21.0 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: June to December.

Rain

2,379 mm in the median year at the habitat, 1,785 mm of it December to June. Wettest month March at 375 mm, driest month September at 84 mm. Across the grid cells of the range the year's total runs 1,854 mm to 2,726 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 2,363 mm, is the year's rain at the top of the page; the 2,379 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: 20 to 41 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 19, the highest 90th-percentile month 42).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 15.1 °C, the absolute minimum 13.5 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 29.1 °C. Monthly means: the coldest month's mean nightly low 14.8 °C in August (across the grid cells of the range 11.4 °C to 17.1 °C), the warmest month's mean daily high 25.6 °C in February (median year across the grid cells of the range, CHELSA). Cold floor: 15.1 °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: 63 to 71% 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 +225 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 Retrophyllum comptonii through the yearWarmest month February, mean daily high 26 °C; coldest month August, mean nightly low 14.8 °C; 2,379 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°15°20°25°30°35°29.1° 99th-percentile day, NASA POWER13.5° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0100200300400500mm rainDLI 20–41RH 63–71%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 9 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 °C25 / 23–2726 / 23–2725 / 23–2624 / 21–2522 / 19–2321 / 17–2219 / 16–2119 / 16–2121 / 18–2322 / 19–2423 / 21–2524 / 22–27
Night °C21 / 18–2321 / 18–2321 / 18–2320 / 17–2118 / 15–2017 / 13–1915 / 12–1715 / 11–1716 / 12–1817 / 14–1918 / 15–2020 / 17–22
Rain mm286 / 221–318330 / 273–376375 / 301–409223 / 144–259183 / 136–217161 / 116–172123 / 91–137129 / 86–14384 / 58–108119 / 76–137139 / 112–162227 / 180–276
DLI38 / 38–4036 / 35–3731 / 30–3228 / 27–2922 / 22–2420 / 19–2121 / 21–2326 / 25–2833 / 33–3538 / 38–3940 / 39–4141 / 40–42
RH %70 / 68–7270 / 69–7371 / 69–7468 / 67–7366 / 65–7166 / 65–6964 / 62–6863 / 62–6863 / 63–6764 / 63–6865 / 64–6968 / 66–70
How this section is made
Each figure is the median across the 9 grid cells on land that hold in-range records (13 records in those cells; 2 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 2228:6915 (-21.425, 165.775). Over 44 years there: absolute minimum 13.5 °C, 1st-percentile night 15.1 °C, 99th-percentile day 29.1 °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 9 distinct grid cells holding 13 of the 15 in-range records (2 further cells with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 2228:6915 (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 -21.50_165.625, lapse-corrected +225 m at 6.5 °C/km. Elevation: ETOPO 2022, 363 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 Caledonia · 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-22.095, 166.542 · in the densest population, 121 records (100% of those in range)
Kew's description“tree” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 121 georeferenced records inside the native range; the climate across the range on the 13 of them in the land cells it reads, of 15 placed to within 10 km; the map shows only the 111 openly licensed ones, which alone would put the marker 5 km away. 106 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 of the 121 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Retrophyllum comptonii, photograph 1did not loadRetrophyllum comptonii, photograph 2did not loadRetrophyllum comptonii, photograph 3did not loadRetrophyllum comptonii, photograph 4did not loadRetrophyllum comptonii, photograph 5did not load

Photographs: Irisa Hudson, CC BY, iNaturalist via GBIF (3); Denis.prévôt, CC BY-SA 3.0, via Wikimedia Commons (2).

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

Agathis ovata Agathis ovata Scrub Kauri Photo: CC0, author not statedXeronema moorei Xeronema moorei New Caledonia bottlebrush lily Photo: CC BY, Irisa HudsonChambeyronia divaricata Chambeyronia divaricata Arecaceae Photo: CC BY, Alain Le MagueresseAcmopyle pancheri Acmopyle pancheri New Caledonia Acmopyle Photo: CC BY, Irisa HudsonSelaginella neocaledonica Selaginella neocaledonica Selaginellaceae Photo: CC BY, naturewatchwidow Callitris pancheri Cupressaceae

Other Retrophyllum 3 in the reference

Retrophyllum minus Retrophyllum minus New Caledonia retrophyllum Photo: CC BY, Alain Le MagueresseRetrophyllum piresii Retrophyllum piresii Podocarpaceae Photo: Public domain, Tomás Queiroz (me) Plant enthusiast and…Retrophyllum rospigliosii Retrophyllum rospigliosii Podocarpaceae Photo: CC BY, Ariel Gallego

Names & registers

Also known as Decussocarpus comptonii; Nageia comptonii; Podocarpus comptonii. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Podocarpaceae
Described by
(J.Buchholz) C.N.Page
Native to
New Caledonia
Wild records
121 in range · 111 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 2687735 is Retrophyllum comptonii (J.T.Buchholz) C.N.Page; the page links Kew's Retrophyllum comptonii (J.Buchholz) C.N.Page, 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; 3 records within 1 km of a botanic garden, herbarium or zoo left out (3 at a botanic garden or arboretum; 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 -21.50_165.625, lapse-corrected +225 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild nothing to reportasked 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
Wikimedia Commons commons 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 16 datasets via GBIF.org; each carries its own licence.

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