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Pandanus montanus; photograph Bernard REYNAUD, CC BY-SA, via GBIF CC BY-SABernard REYNAUD, CC BY-SA, via GBIF

Pandanus montanus Bory

Pandanaceae · Réunion

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Pandanus montanus, photograph Someone Mathieu, CC BY-SA, via GBIFPandanus montanus, photograph Augustin Soulard, CC BY, iNaturalist via GBIFPandanus montanus, photograph Augustin Soulard, CC BY, iNaturalist via GBIFPandanus montanus, photograph Augustin Soulard, CC BY, iNaturalist via GBIFPandanus montanus, photograph Augustin Soulard, CC BY, iNaturalist via GBIFPandanus montanus, photograph B.Navez, CC BY-SA 3.0, via Wikimedia Commons 13 photographs ›
Habitat figures
Cold floor (1 night in 100)
13.0°C
Record low 11.2 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
23°C
Jan, Feb, Mar and Dec at the habitat CHELSA
Rain a year (median across the range)
3,004mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
26–46DLI
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 October (December to April 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

Pandanus montanus is a species of monocots in the genus Pandanus, that is found in wet forest at an elevation of 400–1700 meters.

Quoted from Wikipedia, "Pandanus montanus", CC BY-SA 4.0.

About the genus · Pandanus

Pandanus is a genus of monocots with about 578 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. Common names include pandan, screw palm and screw pine. More on Wikipedia ›

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

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (2,089 mm of 2,971 mm) falls in December to April, warmer than the year (wet-season mean 20.4 °C against a yearly mean of 18.1 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: June to October.

Rain

2,971 mm in the median year at the habitat, 2,089 mm of it December to April. Wettest month February at 637 mm, driest month October at 86 mm. Across the grid cells of the range the year's total runs 2,231 mm to 4,485 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 3,004 mm, is the year's rain at the top of the page; the 2,971 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: 26 to 46 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 22, the highest 90th-percentile month 46).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 13.0 °C, the absolute minimum 11.2 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 26.1 °C. Monthly means: the coldest month's mean nightly low 13.1 °C in August (across the grid cells of the range 8.2 °C to 16.6 °C), the warmest month's mean daily high 23.3 °C in January and February (median year across the grid cells of the range, CHELSA). Cold floor: 13.0 °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: 65 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 +345 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 Pandanus montanus through the yearWarmest months January, February, March and December, mean daily high 23 °C; coldest month August, mean nightly low 13.1 °C; 2,971 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.5°10°15°20°25°30°26.1° 99th-percentile day, NASA POWER11.2° lowest night in 44 years, NASA POWER°C · day and nightcold quarter02004006008001000mm rainDLI 26–46RH 65–71%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 41 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 °C23 / 20–2623 / 20–2623 / 20–2522 / 19–2420 / 16–2318 / 14–2117 / 14–2017 / 14–2019 / 15–2120 / 16–2321 / 18–2423 / 19–25
Night °C19 / 15–2220 / 15–2219 / 15–2218 / 14–2116 / 12–2014 / 10–1813 / 8–1713 / 8–1714 / 9–1715 / 10–1816 / 12–1918 / 14–21
Rain mm480 / 365–632637 / 481–830440 / 327–629267 / 175–460183 / 122–324136 / 87–237139 / 77–253118 / 70–211103 / 69–18286 / 59–154117 / 86–196265 / 203–365
DLI42 / 41–4440 / 38–4137 / 35–3933 / 30–3528 / 24–3126 / 22–2927 / 23–3031 / 28–3438 / 35–4043 / 41–4446 / 45–4644 / 43–46
RH %69 / 66–7371 / 67–7469 / 65–7369 / 65–7268 / 64–7166 / 63–7066 / 63–7065 / 62–7065 / 61–7066 / 62–7067 / 63–7068 / 65–71
How this section is made
Each figure is the median across the 41 grid cells holding the 86 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 2223:4715 (-21.175, 55.775). Over 44 years there: absolute minimum 11.2 °C, 1st-percentile night 13.0 °C, 99th-percentile day 26.1 °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 41 distinct grid cells holding 86 of the 86 in-range records; extremes and elevation at the typical cell 2223:4715 (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 -21.00_55.625, lapse-corrected +345 m at 6.5 °C/km. Elevation: ETOPO 2022, 878 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.
NativeRéunion · 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-21.154, 55.613 · in the densest population, 94 records (100% of those in range)
Kew's description“shrub or tree” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 94 georeferenced records inside the native range; the climate across the range on the 86 of them placed to within 10 km; the map shows only the 77 openly licensed ones, which alone would put the marker 2 km away. 8 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 94 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Pandanus montanus, photograph 1did not loadPandanus montanus, photograph 2did not loadPandanus montanus, photograph 3did not loadPandanus montanus, photograph 4did not loadPandanus montanus, photograph 5did not loadPandanus montanus, photograph 6did not load

Photographs: Someone Mathieu, CC BY-SA, via GBIF; Augustin Soulard, CC BY, iNaturalist via GBIF (4); B.Navez, CC BY-SA 3.0, via Wikimedia Commons.

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

Asplenium daucifolium Asplenium daucifolium Mauritius spleenwort Photo: CC BY, Denis BastianelliAlsophila borbonica Alsophila borbonica Mauritius Tree Fern Photo: CC BY, Denis BastianelliCalanthe pulchella Calanthe pulchella Orchidaceae Photo: CC0, Romer N. RabarijaonaJumellea stenophylla Jumellea stenophylla Orchidaceae Photo: CC BY, Kai SquiresHymenophyllum inaequale Hymenophyllum inaequale Hymenophyllaceae Photo: CC BY, mariusEugenia buxifolia Eugenia buxifolia Myrtaceae Photo: CC BY, Jacek Pietruszewski

Other Pandanus 26 in the reference

Pandanus amaryllifolius Pandanus amaryllifolius Fragrant Pandan Photo: CC BY, chiuluanPandanus aquaticus Pandanus aquaticus Water Pandan Photo: CC BY, Stella FishPandanus austrosinensis Pandanus austrosinensis Pandanaceae Photo: CC BY, Kalvin ChanPandanus balfourii Pandanus balfourii Balfour’s Pandanus Photo: CC0, author not statedPandanus basedowii Pandanus basedowii Sandstone Pandanus Photo: CC BY, Thomas MesaglioPandanus conoideus Pandanus conoideus Pandanaceae Photo: CC BY, Cheongweei GanPandanus cookii Pandanus cookii Cook's pandan Photo: CC0, author not statedPandanus dubius Pandanus dubius Knob-fruited Screwpine Photo: CC BY, GabrielPandanus furcatus Pandanus furcatus Pandanus Photo: CC BY, Sagnik Dutta RoyPandanus gemmifer Pandanus gemmifer Pup pandan Photo: CC BY, Richard LittauerPandanus kaida Pandanus kaida False Pineapple Photo: CC0, author not stated Pandanus labyrinthicus Pandanaceae all 27 ›

Names & registers

Also known as Pandanus borbonicus; Pandanus erigens; Pandanus gaudichaudii; Pandanus pyramidatus; Pandanus sussea and 2 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipedia

The record

Family
Pandanaceae
Described by
Bory
Native to
Réunion
Wild records
94 in range · 77 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 -21.00_55.625, lapse-corrected +345 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
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
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 12 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…