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An example collection, so you can see what this page does. Nothing added here is kept: leaving deletes it.
Lagerstroemia tomentosa; photograph Board of Trustees, RBG Kew, CC BY 3.0, via Wikimedia Commons CC BYBoard of Trustees, RBG Kew, CC BY 3.0, via Wikimedia Commons

Lagerstroemia tomentosa C.Presl

Lythraceae · China South-Central, Bangladesh +7

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Lagerstroemia tomentosa, photograph LBM1948, CC BY-SA 4.0, via Wikimedia Commons 2 photographs ›
Habitat figuresfrom few records
Cold floor (1 night in 100)
14.9°C
Record low 12.8 °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)
1,299mm
9 months of 25 mm or more in the median year CHELSA
Open-sky light
28–42DLI
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 May and July to October, 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: 6 records in 6 grid cells. The records.

Summary

Lagerstroemia tomentosa is a species of flowering plant in the family Lythraceae. It is found in Indochina, including in Yunnan (China), Vietnam, Laos, Thailand, and Cambodia.

Quoted from Wikipedia, "Lagerstroemia tomentosa", 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 (777 mm of 1,101 mm) falls in May and July to October, warmer than the year (wet-season mean 27.9 °C against a yearly mean of 27.2 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: January to April and November.

Rain

1,101 mm in the median year at the habitat, 777 mm of it May and July to October. Wettest month October at 231 mm, driest month January at 14 mm. Across the grid cells of the range the year's total runs 855 mm to 2,907 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,299 mm, is the year's rain at the top of the page; the 1,101 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: 28 to 42 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 45).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 14.9 °C, the absolute minimum 12.8 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 39.7 °C. Monthly means: the coldest month's mean nightly low 19.5 °C in January (across the grid cells of the range 11.1 °C to 21.6 °C), the warmest month's mean daily high 33.7 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 14.9 °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 66% 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 +75 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 6 records in 6 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 tomentosa through the yearWarmest month April, mean daily high 34 °C; coldest month January, mean nightly low 19.5 °C; 1,101 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.10°15°20°25°30°35°40°45°39.7° 99th-percentile day, NASA POWER12.8° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0200400600800mm rainDLI 28–42RH 56–66%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 6 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 °C28 / 23–3130 / 26–3232 / 30–3434 / 32–3633 / 31–3731 / 28–3630 / 28–3330 / 27–3231 / 28–3230 / 28–3128 / 26–3128 / 23–30
Night °C20 / 11–2221 / 13–2322 / 16–2524 / 20–2726 / 22–2725 / 21–2825 / 20–2725 / 20–2624 / 20–2623 / 19–2522 / 15–2320 / 12–22
Rain mm14 / 3–2915 / 7–3221 / 13–5669 / 13–103102 / 36–33099 / 64–523134 / 82–590160 / 88–619150 / 116–448231 / 120–25581 / 28–27925 / 6–128
DLI33 / 29–3538 / 35–3942 / 40–4342 / 40–4538 / 33–4533 / 25–3931 / 23–3330 / 22–3431 / 28–3630 / 29–3328 / 26–3229 / 26–32
RH %58 / 56–6056 / 52–6157 / 48–6260 / 47–6361 / 51–6764 / 53–7264 / 59–7265 / 60–7165 / 61–7066 / 58–6762 / 55–6759 / 54–64
How this section is made
Each figure is the median across the 6 grid cells holding the 6 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 1621:5145 (8.925, 77.275). Over 44 years there: absolute minimum 12.8 °C, 1st-percentile night 14.9 °C, 99th-percentile day 39.7 °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 6 distinct grid cells holding 6 of the 6 in-range records; extremes and elevation at the typical cell 1621:5145 (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 9.00_77.500, lapse-corrected +75 m at 6.5 °C/km. Elevation: ETOPO 2022, 323 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.
NativeChina South-Central, Bangladesh, India, Andaman Is., Cambodia, Laos, Myanmar, 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 marker18.867, 98.833 · in the densest population, 35 records (58% of those in range)
Kew's description“tree” · “seasonally dry tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 60 georeferenced records inside the native range; the climate across the range on the 6 of them placed to within 10 km; the map shows only the 53 openly licensed ones, which alone would put the marker 9 km away. 11 records outside the WCVP native range not used. Under a dozen records behind the climate. 54 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 60 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 tomentosa, photograph 1did not load

Photographs: LBM1948, CC BY-SA 4.0, via Wikimedia Commons.

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

Nymphaea pubescens Nymphaea pubescens Hairy water lily Photo: CC BY, rajesh rockyCalotropis gigantea Calotropis gigantea Giant milkweed Photo: CC0, author not statedOuret lanata Ouret lanata Aerva Photo: CC BY, white_cheeked_barbetRuellia prostrata Ruellia prostrata Prostrate wild petunia Photo: CC0, author not statedBarringtonia acutangula Barringtonia acutangula Freshwater mangrove Photo: CC BY, Alan BellBorassus flabellifer Borassus flabellifer Toddy palm Photo: CC BY-SA, Dinesh Valke

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 duperreana Lagerstroemia duperreana Lythraceae Photo: CC BY, Sabarni SarkerLagerstroemia 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 Valke all 17 ›

Names & registers

Also known as Lagerstroemia pubescens; Lagerstroemia tomentosa var. caudata; Murtughas tomentosa. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Lythraceae
Described by
C.Presl
Native to
China South-Central, Bangladesh, India +6
Wild records
60 in range · 53 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; 9 records within 1 km of a botanic garden, herbarium or zoo left out (4 at a botanic garden or arboretum, 4 at a herbarium, 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 9.00_77.500, lapse-corrected +75 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 nothing to reportasked 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 20 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…