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Lagerstroemia duperreana; photograph (c) Sabarni Sarker, some rights reserved (CC BY) CC BY(c) Sabarni Sarker, some rights reserved (CC BY) · observed growing wild · 2020-11-07

Lagerstroemia duperreana Pierre ex Gagnep.

Lythraceae · Bangladesh, India +4

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Lagerstroemia duperreana, photograph Dinesh Valke from Thane, India, CC BY-SA 2.0, via Wikimedia CommonsLagerstroemia duperreana, photograph Lannafolium, CC0, via Wikimedia CommonsLagerstroemia duperreana, photograph Lannafolium, CC0, via Wikimedia CommonsLagerstroemia duperreana, photograph Lannafolium, CC0, via Wikimedia CommonsLagerstroemia duperreana, photograph Dinesh Valke from Thane, India, CC BY-SA 2.0, via Wikimedia CommonsLagerstroemia duperreana, photograph Dinesh Valke from Thane, India, CC BY-SA 2.0, via Wikimedia Commons 9 photographs ›
Habitat figuresfrom few records
Cold floor (1 night in 100)
7.4°C
Record low 3.5 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
34°C
Apr at the habitat CHELSA
Rain a year (median across the range)
1,805mm
9 months of 25 mm or more in the median year CHELSA
Open-sky light
26–41DLI
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 September, read as a summer growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

From few records: 4 records in 4 grid cells. The records.

Summary

Lagerstroemia duperreana is a species of flowering plant in the family Lythraceae. It is found in Indochina, including in southern Vietnam, Laos, Thailand, and Cambodia.

Quoted from Wikipedia, "Lagerstroemia duperreana", CC BY-SA 4.0.

About the genus · Lagerstroemia

Lagerstroemia, commonly known as crape myrtle, is a genus of deciduous and evergreen trees and shrubs native to the Indian subcontinent, southeast Asia, northern Australia, and other parts of Oceania, cultivated in warmer climates around the world. It is a member of the family Lythraceae, which is also known as the loosestrife family. These flowering trees are often planted both privately and commercially as ornamentals.

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

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,297 mm of 1,794 mm) falls in June to September, warmer than the year (wet-season mean 28.9 °C against a yearly mean of 26.1 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to March.

Rain

1,794 mm in the median year at the habitat, 1,297 mm of it June to September. Wettest month July at 365 mm, driest month December at 11 mm. Across the grid cells of the range the year's total runs 1,407 mm to 2,057 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,805 mm, is the year's rain at the top of the page; the 1,794 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 26 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 25, the highest 90th-percentile month 43).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 7.4 °C, the absolute minimum 3.5 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 43.1 °C. Monthly means: the coldest month's mean nightly low 13.0 °C in January (across the grid cells of the range 12.9 °C to 19.9 °C), the warmest month's mean daily high 33.8 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 7.4 °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: 52 to 69% 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 -4 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

From few records: this habitat climate is read from 4 records in 4 grid cells; a page says so under 12 records or 5 cells, and shows the figures as read.

Habitat months, northern hemisphere

Habitat climate of Lagerstroemia duperreana through the yearWarmest month April, mean daily high 34 °C; coldest month January, mean nightly low 13.0 °C; 1,794 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, northern hemisphere.0°10°20°30°40°50°43.1° 99th-percentile day, NASA POWER3.5° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0100200300400mm rainDLI 26–41RH 52–69%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 4 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 / 25–2628 / 27–2832 / 30–3334 / 31–3533 / 32–3533 / 32–3331 / 31–3231 / 31–3131 / 31–3130 / 30–3028 / 28–2926 / 25–26
Night °C13 / 13–2016 / 16–2121 / 20–2425 / 24–2727 / 26–2827 / 26–2826 / 26–2726 / 26–2725 / 25–2623 / 23–2519 / 18–2314 / 14–21
Rain mm15 / 11–2623 / 23–2437 / 23–6057 / 30–118152 / 81–243289 / 124–346365 / 164–398342 / 181–359301 / 178–313166 / 161–21836 / 34–22911 / 11–122
DLI30 / 29–3133 / 33–3739 / 38–4241 / 38–4338 / 34–4129 / 27–3526 / 25–3226 / 26–3226 / 26–3429 / 28–3128 / 27–2828 / 27–28
RH %53 / 52–5954 / 53–6056 / 55–6161 / 60–6362 / 62–6566 / 60–6869 / 61–7069 / 62–6968 / 65–6862 / 61–6455 / 54–6252 / 51–60
How this section is made
Each figure is the median across the 4 grid cells holding the 4 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 1348:5368 (22.575, 88.425). Over 44 years there: absolute minimum 3.5 °C, 1st-percentile night 7.4 °C, 99th-percentile day 43.1 °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 4 distinct grid cells holding 4 of the 4 in-range records; extremes and elevation at the typical cell 1348:5368 (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 22.50_88.125, lapse-corrected -4 m at 6.5 °C/km. Elevation: ETOPO 2022, 3 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.
NativeBangladesh, India, Cambodia, Laos, Thailand, Vietnam · 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 marker13.417, 101.883 · in the densest population, 10 records (63% 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 16 georeferenced records inside the native range; the climate across the range on the 4 of them placed to within 10 km, all openly licensed and shown on the map. 1 record outside the WCVP native range not used. Under a dozen records behind the climate. 12 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 16 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Lagerstroemia duperreana, photograph 1did not loadLagerstroemia duperreana, photograph 2did not loadLagerstroemia duperreana, photograph 3did not loadLagerstroemia duperreana, photograph 4did not loadLagerstroemia duperreana, photograph 5did not loadLagerstroemia duperreana, photograph 6did not load

Photographs: Dinesh Valke from Thane, India, CC BY-SA 2.0, via Wikimedia Commons (3); Lannafolium, CC0, via Wikimedia Commons (3).

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

Alocasia indica Alocasia indica Araceae Photo: CC BY-SA, Yercaud-elangoChrysopogon zizanioides Chrysopogon zizanioides Khuskhus Vetiver Photo: CC BY, rjtizardPentapetes phoenicea Pentapetes phoenicea Copper-cups Photo: CC BY-SA, SHRABANI MONDALPiper longum Piper longum Indian long pepper Photo: CC BY, Md. Tayhid HasanClerodendrum indicum Clerodendrum indicum Turk's turban Photo: CC BY, Daniel NunezJusticia gendarussa Justicia gendarussa Warer willow Photo: CC BY, 謝麗霦

Other Lagerstroemia 16 in the reference

Lagerstroemia calyculata Lagerstroemia calyculata Sralao Photo: CC0, author not statedLagerstroemia caudata Lagerstroemia caudata Lythraceae Photo: CC0, Eine süße KatzeLagerstroemia engleriana Lagerstroemia engleriana Lythraceae Photo: CC BY, Forest and Kim StarrLagerstroemia floribunda Lagerstroemia floribunda Thai Crape-Myrtle Photo: CC BY, scallionsLagerstroemia fordii Lagerstroemia fordii Lythraceae Photo: CC0, author not statedLagerstroemia indica Lagerstroemia indica Crape-myrtle Photo: CC0, author not stated Lagerstroemia langkawiensis Lythraceae Lagerstroemia limii Lagerstroemia limii Lythraceae Photo: CC BY, Kim, Hyun-taeLagerstroemia loudonii Lagerstroemia loudonii Lythraceae Photo: CC BY-SA, Xufanc Lagerstroemia macrocarpa Lythraceae Lagerstroemia microcarpa Lagerstroemia microcarpa Lythraceae Photo: CC BY-SA, Dinesh ValkeLagerstroemia noei Lagerstroemia noei Noei's Crape-myrtle Photo: CC0, Pawin Chan all 17 ›

Names & registers

Also known as Lagerstroemia thorelii. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Lythraceae
Described by
Pierre ex Gagnep.
Native to
Bangladesh, India, Cambodia +3
Wild records
16 in range · 16 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; 1 record within 1 km of a botanic garden, herbarium or zoo left out (1 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 22.50_88.125, lapse-corrected -4 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
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 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
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 10 datasets via GBIF.org; each carries its own licence.

Cultifolio

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