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Cryptocoryne ciliata; photograph (c) Ong Jyh Seng, some rights reserved (CC BY) CC BY(c) Ong Jyh Seng, some rights reserved (CC BY) · observed growing wild · 2026-02-19

Cryptocoryne ciliata (Roxb.) Schott

Araceae · Bangladesh, India +13

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Cryptocoryne ciliata, photograph (c) Ong Jyh Seng, some rights reserved (CC BY-SA)Cryptocoryne ciliata, photograph (c) luluchouette, some rights reserved (CC BY)Cryptocoryne ciliata, photograph (c) luluchouette, some rights reserved (CC BY)Cryptocoryne ciliata, photograph (c) luluchouette, some rights reserved (CC BY)Cryptocoryne ciliata, photograph (c) Ong Jyh Seng, some rights reserved (CC BY-SA) 6 photographs ›
Habitat figuresfrom few records
Cold floor (1 night in 100)
23.2°C
Record low 21.9 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
31°C
Aug at the habitat CHELSA
Rain a year (median across the range)
2,781mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
29–35DLI
Lowest to highest month (DLI) CHELSA
The year in the habitat's months, not shifted
  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
Not shifted: the shift rule does not apply to this habitat. The chart is in the habitat's months.

From few records: 10 records in 9 grid cells. The records.

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (1,973 mm of 2,685 mm) takes 8 months, October to May. Mean temperature moves 1.3 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere. The habitat lies within 10° of the equator, where the shift rule does not apply, so they are not shifted for a collection elsewhere.

Rain

2,685 mm in the median year at the habitat, 1,973 mm of it October to May. Wettest month November at 283 mm, driest month August at 142 mm. Across the grid cells of the range the year's total runs 2,067 mm to 3,807 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 2,781 mm, is the year's rain at the top of the page; the 2,685 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: 29 to 35 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 26, the highest 90th-percentile month 40).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 23.2 °C, the absolute minimum 21.9 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 30.7 °C. Monthly means: the coldest month's mean nightly low 23.2 °C in December (across the grid cells of the range 22.5 °C to 24.5 °C), the warmest month's mean daily high 30.5 °C in August (median year across the grid cells of the range, CHELSA). Cold floor: 23.2 °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 68% 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 -15 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 10 records in 9 grid cells; a page says so under 12 records or 5 cells, and shows the figures as read.

Habitat months, southern hemisphere

Habitat climate of Cryptocoryne ciliata through the yearWarmest month August, mean daily high 31 °C; coldest month December, mean nightly low 23.2 °C; 2,685 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.20°25°30°35°30.7° 99th-percentile day, NASA POWER21.9° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0200400600800mm rainDLI 29–35RH 65–68%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 °C29 / 27–3030 / 28–3130 / 28–3230 / 29–3230 / 29–3130 / 29–3130 / 28–3131 / 28–3130 / 28–3130 / 28–3129 / 28–3029 / 28–30
Night °C23 / 22–2424 / 23–2525 / 23–2525 / 24–2625 / 24–2625 / 23–2625 / 23–2525 / 23–2524 / 23–2524 / 23–2524 / 23–2523 / 23–25
Rain mm268 / 27–576215 / 28–386234 / 81–345251 / 134–268226 / 149–267194 / 123–248175 / 119–263142 / 114–264201 / 146–305242 / 168–327283 / 147–417254 / 59–678
DLI30 / 28–3434 / 30–3735 / 31–4035 / 31–3933 / 30–3632 / 30–3432 / 31–3434 / 31–3634 / 30–3732 / 29–3529 / 29–3229 / 26–32
RH %66 / 60–7065 / 60–6965 / 61–6967 / 64–7068 / 64–7168 / 62–6967 / 62–6866 / 61–6866 / 62–6966 / 63–7067 / 64–7167 / 63–71
How this section is made
Each figure is the median across the 9 grid cells holding the 10 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 1757:5830 (2.125, 111.525). Over 44 years there: absolute minimum 21.9 °C, 1st-percentile night 23.2 °C, 99th-percentile day 30.7 °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 9 distinct grid cells holding 10 of the 10 in-range records; extremes and elevation at the typical cell 1757:5830 (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 2.00_111.250, lapse-corrected -15 m at 6.5 °C/km. Elevation: ETOPO 2022, 5 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, Myanmar, Nicobar Is., Thailand, Vietnam, Borneo, Jawa, Malaya, Maluku, Philippines, Sulawesi, Sumatera, New Guinea · 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-7.508, 144.508 · in the densest population, 8 records (28% of those in range)
Kew's description“helophyte or perennial” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 29 georeferenced records inside the native range; the climate across the range on the 10 of them placed to within 10 km; the map shows only the 19 openly licensed ones, which alone would put the marker in the same place. Under a dozen records behind the climate. 19 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 4° block of the 29 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Cryptocoryne ciliata, photograph 1did not loadCryptocoryne ciliata, photograph 2did not loadCryptocoryne ciliata, photograph 3did not loadCryptocoryne ciliata, photograph 4did not loadCryptocoryne ciliata, photograph 5did not load

Photographs: (c) Ong Jyh Seng, some rights reserved (CC BY-SA) (2); (c) luluchouette, some rights reserved (CC BY) (3).

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

Benstonea affinis Benstonea affinis Pandanaceae Photo: CC BY-SA, Wibowo Djatmiko (Wie146)Mangifera caesia Mangifera caesia Mango Photo: CC BY-SA, AlternativityIlex cymosa Ilex cymosa Marsh Holly Photo: CC BY-SA, Bernard DUPONT from FRANCECyrtostachys renda Cyrtostachys renda Lipstick palm Photo: CC0, author not statedHoya latifolia Hoya latifolia Apocynaceae Photo: CC BY, pbsgEleiodoxa conferta Eleiodoxa conferta Arecaceae Photo: CC BY, Adam Kamal

Other Cryptocoryne 15 in the reference

Cryptocoryne affinis Cryptocoryne affinis Araceae Photo: CC BY, Zakqary RoyCryptocoryne beckettii Cryptocoryne beckettii Beckett's water trumpet Photo: CC BY-SA, Krzysztof Ziarnek, KenraizCryptocoryne cordata Cryptocoryne cordata Araceae Photo: CC BY, Cheongweei Gan Cryptocoryne crispatula Araceae Cryptocoryne lingua Araceae Cryptocoryne moehlmannii Moehlmann's Cryptocoryne Cryptocoryne nevillii Cryptocoryne nevillii Araceae Photo: CC BY-SA, Krzysztof Ziarnek, Kenraiz Cryptocoryne parva Tiny Cryptocoryne Cryptocoryne pontederiifolia Cryptocoryne pontederiifolia Araceae Photo: CC BY, Cheongweei Gan Cryptocoryne × purpurea Araceae Cryptocoryne retrospiralis Cryptocoryne retrospiralis Antispiral Water Trumpet Photo: CC BY, Siddarth MachadoCryptocoryne spiralis Cryptocoryne spiralis Araceae Photo: CC0, author not stated all 16 ›

Names & registers

Also known as Ambrosina ciliata; Arum ciliatum. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Araceae
Described by
(Roxb.) Schott
Native to
Bangladesh, India, Cambodia +12
Wild records
29 in range · 19 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 2.00_111.250, lapse-corrected -15 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia nothing to reportasked 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 nothing to reportasked 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 6 datasets via GBIF.org; each carries its own licence.

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