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Barleria strigosa; photograph (c) Vikas D Prasad, some rights reserved (CC BY-SA) CC BY-SA(c) Vikas D Prasad, some rights reserved (CC BY-SA) · observed growing wild · 2026-01-24

Barleria strigosa Willd.

Acanthaceae · China South-Central, Assam +11

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Barleria strigosa, photograph (c) Utsav Biswas, some rights reserved (CC BY-SA)Barleria strigosa, photograph author not stated, no rights reservedBarleria strigosa, photograph author not stated, no rights reservedBarleria strigosa, photograph author not stated, no rights reservedBarleria strigosa, photograph (c) Vikas D Prasad, some rights reserved (CC BY-SA)Barleria strigosa, photograph (c) Vikas D Prasad, some rights reserved (CC BY-SA) 31 photographs ›
Habitat figures
Cold floor (1 night in 100)
8.4°C
Record low 1.7 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
33°C
Apr at the habitat CHELSA
Rain a year (median across the range)
1,494mm
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 May 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.

Summary

Barleria strigosa is a plant in the family Acanthaceae. It occurs naturally in the foothills of the Himalayas, but has been introduced to far northern Queensland, Australia.

Quoted from Wikipedia, "Barleria strigosa", CC BY-SA 4.0.

About the genus · Barleria

Barleria is a genus of plants in the family Acanthaceae. It includes 303 species native to the tropics and subtropics, including the Americas from Mexico to northern South America, sub-Saharan Africa, Egypt and the Arabian Peninsula, the Indian subcontinent, Indochina, southern China and Taiwan, parts of Malesia, and New Guinea.

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

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,110 mm of 1,447 mm) falls in May to September, warmer than the year (wet-season mean 26.3 °C against a yearly mean of 25.0 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to March.

Rain

1,447 mm in the median year at the habitat, 1,110 mm of it May to September. Wettest month August at 258 mm, driest months (2 at 9 mm). Across the grid cells of the range the year's total runs 994 mm to 2,589 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,494 mm, is the year's rain at the top of the page; the 1,447 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 21, 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 8.4 °C, the absolute minimum 1.7 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 39.1 °C. Monthly means: the coldest month's mean nightly low 15.1 °C in December (across the grid cells of the range 11.4 °C to 21.1 °C), the warmest month's mean daily high 32.8 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 8.4 °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: 53 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 +40 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, northern hemisphere

Habitat climate of Barleria strigosa through the yearWarmest month April, mean daily high 33 °C; coldest month December, mean nightly low 15.1 °C; 1,447 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°39.1° 99th-percentile day, NASA POWER1.7° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0200400600800mm rainDLI 26–41RH 53–69%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 70 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 °C27 / 23–3030 / 26–3232 / 28–3433 / 29–3631 / 28–3729 / 26–3228 / 25–3128 / 25–3028 / 26–3028 / 25–3027 / 24–2926 / 22–29
Night °C15 / 11–2117 / 13–2220 / 16–2323 / 19–2523 / 20–2623 / 20–2523 / 20–2523 / 19–2422 / 19–2420 / 18–2318 / 14–2215 / 11–21
Rain mm9 / 2–2215 / 4–2633 / 14–7291 / 27–140184 / 76–249185 / 116–484227 / 137–746258 / 183–563256 / 177–375143 / 86–25237 / 14–839 / 5–19
DLI32 / 29–3636 / 34–4040 / 37–4341 / 38–4335 / 32–4330 / 24–3327 / 21–3226 / 21–3028 / 25–3029 / 27–3230 / 27–3230 / 27–33
RH %56 / 51–6054 / 49–6053 / 47–6156 / 49–6463 / 53–6966 / 59–7367 / 63–7469 / 65–7568 / 65–7265 / 60–6960 / 55–6357 / 52–60
How this section is made
Each figure is the median across the 70 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 1431:5609 (18.425, 100.475). Over 44 years there: absolute minimum 1.7 °C, 1st-percentile night 8.4 °C, 99th-percentile day 39.1 °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 70 distinct grid cells holding 86 of the 86 in-range records; extremes and elevation at the typical cell 1431:5609 (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 18.50_100.625, lapse-corrected +40 m at 6.5 °C/km. Elevation: ETOPO 2022, 495 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, Assam, Bangladesh, East Himalaya, India, Nepal, Sri Lanka, West Himalaya, Cambodia, Laos, Myanmar, Thailand, Vietnam · introduced: Leeward Is. AB Ant, Windward Is. · 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 marker18.783, 98.917 · in the densest population, 87 records (55% of those in range)
Kew's description“subshrub or shrub” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 158 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 97 openly licensed ones, which alone would put the marker 314 km away. 38 records outside the WCVP native range not used. 72 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 158 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Barleria strigosa, photograph 1did not loadBarleria strigosa, photograph 2did not loadBarleria strigosa, photograph 3did not loadBarleria strigosa, photograph 4did not loadBarleria strigosa, photograph 5did not loadBarleria strigosa, photograph 6did not load

Photographs: (c) Utsav Biswas, some rights reserved (CC BY-SA); author not stated, no rights reserved · CC0 (3); (c) Vikas D Prasad, some rights reserved (CC BY-SA) (2).

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

Pterocarpus macrocarpus Pterocarpus macrocarpus Burma padauk Photo: CC BY, Utain PummarinPlatycerium holttumii Platycerium holttumii Polypodiaceae Photo: CC BY, chrisdtGynura pseudochina Gynura pseudochina Asteraceae Photo: CC BY-SA, Len WorthingtonGardenia sootepensis Gardenia sootepensis Rubiaceae Photo: CC BY, Mitch Van DykeDendrobium lindleyi Dendrobium lindleyi Orchidaceae Photo: CC BY, Zac PetersonCurcuma parviflora Curcuma parviflora Zingiberaceae Photo: CC BY, jimmy

Other Barleria 15 in the reference

Barleria albostellata Barleria albostellata Grey Barleria Photo: CC BY, linkieBarleria cristata Barleria cristata Crested Philippine violet Photo: CC BY, Raúl A. Ruiz M.Barleria delagoensis Barleria delagoensis Acanthaceae Photo: CC0, author not statedBarleria elegans Barleria elegans White Bushveld Barleria Photo: CC0, author not statedBarleria greenii Barleria greenii Wild Bush Petunia Photo: Public domain, Andrew massynBarleria lancifolia Barleria lancifolia Butterfly Barleria Photo: CC0, author not statedBarleria lichtensteiniana Barleria lichtensteiniana Acanthaceae Photo: CC0, author not statedBarleria lupulina Barleria lupulina Hophead Philippine violet Photo: CC BY-SA, Dairon Cuevas RiverasBarleria obtusa Barleria obtusa Blue Bushviolet Photo: CC BY, Presha SoogrimBarleria oenotheroides Barleria oenotheroides Acanthaceae Photo: CC BY, Oscar Israel Rodríguez OrtizBarleria prionitis Barleria prionitis Porcupine flower Photo: CC BY, Raja Sekhar ChimiralaBarleria repens Barleria repens Coral Creeper Photo: CC BY, nebrooks all 16 ›

Names & registers

Also known as Barleria caerulea; Barleria coerulea; Barleria diandra; Barleria fasciculata; Barleria hirsuta and 12 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Acanthaceae
Described by
Willd.
Native to
China South-Central, Assam, Bangladesh +10
Wild records
158 in range · 97 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 2026-10-21
GBIF species record gbif.species answeredasked 2026-10-21
GBIF synonyms gbif.synonyms answeredasked 2026-10-21
GBIF common names gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21
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; 12 records within 1 km of a botanic garden, herbarium or zoo left out (9 at a botanic garden or arboretum, 1 at a herbarium, 2 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 18.50_100.625, lapse-corrected +40 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-21
Wikipedia wikipedia answeredasked 2026-10-21
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 2026-10-21
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 25 datasets via GBIF.org; each carries its own licence.

Cultifolio

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