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An example collection, so you can see what this page does. Nothing added here is kept: leaving deletes it.
Caucaea nubigena; photograph Francisco Sánchez Karste, CC BY, iNaturalist via GBIF CC BYFrancisco Sánchez Karste, CC BY, iNaturalist via GBIF

Caucaea nubigena (Lindl.) N.H.Williams & M.W.Chase

Orchidaceae · Venezuela, Colombia +2

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Caucaea nubigena, photograph Francisco Sánchez Karste, CC BY, iNaturalist via GBIFCaucaea nubigena, photograph Carlos Mosquera, CC BY, iNaturalist via GBIFCaucaea nubigena, photograph Carlos Mosquera, CC BY, iNaturalist via GBIFCaucaea nubigena, photograph Carlos Mosquera, CC BY, iNaturalist via GBIFCaucaea nubigena, photograph Carlos Mosquera, CC BY, iNaturalist via GBIFCaucaea nubigena, photograph Carlos Mosquera, CC BY, iNaturalist via GBIF 18 photographs ›
Habitat figures
Coldest month, mean nightly low
5.1°C
Jul at the habitat, not a floor; extremes not used (the weather cell's ground is too far off) CHELSA
Warmest month, mean daily high
16°C
Sep at the habitat CHELSA
Rain a year (median across the range)
1,317mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
28–34DLI
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
A sharp rainy season, November to May (the habitat's months, not shifted), in a year of even temperature. rain rule, CHELSA
Not shifted: the shift rule does not apply to this habitat. The chart is in the habitat's months.

Cultivation

Seasons

The rain rule reads a sharp season: 70% of the median year's rain (1,046 mm of 1,384 mm) falls in November to May. The temperature curve is flat, 1.4 °C between the warmest and coldest month, so the growing-season rule does not infer a growing season from it. 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

1,384 mm in the median year at the habitat, 1,046 mm of it November to May. Wettest month March at 237 mm, driest month August at 47 mm. Across the grid cells of the range the year's total runs 997 mm to 2,024 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,317 mm, is the year's rain at the top of the page; the 1,384 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: 28 to 34 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

Monthly means: the coldest month's mean nightly low 5.1 °C in July (across the grid cells of the range 3.9 °C to 9.7 °C), the warmest month's mean daily high 15.8 °C in September (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 5.1 °C, the coldest month's mean nightly low, July, in the median year (CHELSA); a month's mean of its nightly lows is warmer than the nights a floor is read from. The daily extremes were read at a weather cell whose ground is too far above or below the typical spot to correct for, and are not used.

Humidity

Relative humidity at the habitat: 62 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. CHELSA monthly means, median year across the grid cells of the range. No cold floor is read without a daily extremes series; the coldest month's mean nightly low named in its sentence is not one. 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 Caucaea nubigena through the yearWarmest month September, mean daily high 16 °C; coldest month July, mean nightly low 5.1 °C; 1,384 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, southern hemisphere.0°5°10°15°20°°C · day and nightcold quarter0100200300400500mm rainDLI 28–34RH 62–68%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 DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C14 / 12–1715 / 12–1715 / 12–1715 / 12–1715 / 12–1714 / 12–1714 / 11–1715 / 12–1816 / 13–1815 / 13–1815 / 12–1815 / 12–17
Night °C7 / 5–107 / 5–117 / 5–117 / 5–117 / 5–116 / 5–105 / 4–105 / 4–106 / 4–106 / 4–107 / 4–107 / 5–10
Rain mm118 / 82–225180 / 112–335237 / 157–403181 / 135–285117 / 74–17381 / 42–11759 / 29–9647 / 26–8066 / 44–9385 / 80–10591 / 87–118122 / 99–152
DLI30 / 28–3429 / 28–3429 / 27–3429 / 27–3428 / 26–3328 / 26–3229 / 27–3432 / 30–3834 / 32–4034 / 31–3833 / 31–3530 / 28–34
RH %68 / 67–7168 / 67–7168 / 66–7068 / 65–6967 / 63–6966 / 60–6964 / 58–6862 / 57–6563 / 59–6465 / 62–6665 / 64–6867 / 66–70

The daily extremes were not used: the correction for elevation, +1270 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's. So no cold floor is read for this species, and the coldest month's mean nightly low is not taken as one. What that cell gave, so corrected, over 44 years: absolute minimum -2.0 °C, 1st-percentile night 0.8 °C.

How this section is made
Each figure is the median across the 9 grid cells holding the 15 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 1871:2012 (-3.575, -79.375). 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 15 of the 15 in-range records; extremes and elevation at the typical cell 1871:2012 (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 -3.50_-79.375, lapse-corrected +1270 m at 6.5 °C/km. Elevation: ETOPO 2022, 3246 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.
NativeVenezuela, Colombia, Ecuador, Peru · 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-2.833, -79.2 · in the densest population, 25 records (89% of those in range)
Kew's description“pseudobulbous epiphyte” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 28 georeferenced records inside the native range; the climate across the range on the 15 of them placed to within 10 km; the map shows only the 18 openly licensed ones, which alone would put the marker 16 km away. 13 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 28 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Caucaea nubigena, photograph 1did not loadCaucaea nubigena, photograph 2did not loadCaucaea nubigena, photograph 3did not loadCaucaea nubigena, photograph 4did not loadCaucaea nubigena, photograph 5did not loadCaucaea nubigena, photograph 6did not load

Photographs: Francisco Sánchez Karste, CC BY, iNaturalist via GBIF; Carlos Mosquera, CC BY, iNaturalist via GBIF (5).

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

Salvia corrugata Salvia corrugata Lamiaceae Photo: CC BY, Diego Inclan Tillandsia renateae Bromeliaceae Chenopodium quinoa Chenopodium quinoa Quinoa Photo: CC0, author not statedPodocarpus sprucei Podocarpus sprucei Podocarpaceae Photo: CC BY, Paúl GonzálesMiconia papillosa Miconia papillosa Melastomataceae Photo: CC0, author not statedFuchsia loxensis Fuchsia loxensis Onagraceae Photo: CC BY, Efrain Freire

Other Caucaea 4 in the reference

Caucaea olivacea Caucaea olivacea Orchidaceae Photo: CC BY, John G. PhillipsCaucaea phalaenopsis Caucaea phalaenopsis Orchidaceae Photo: CC BY-SA, Orchi Caucaea radiata Orchidaceae Caucaea sanguinolenta Caucaea sanguinolenta Orchidaceae Photo: CC BY, Esteban Poveda

Names & registers

Also known as Caucaea aequinoctialis; Caucaea azuayensis; Caucaea erosilabia; Caucaea tunguraguensis; Oncidium aequinoctiale and 11 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidata

The record

Family
Orchidaceae
Described by
(Lindl.) N.H.Williams & M.W.Chase
Native to
Venezuela, Colombia, Ecuador +1
Wild records
28 in range · 18 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
Habitat climate climate answeredasked 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell -3.50_-79.375, lapse-corrected +1270 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1270 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's, so no cold floor is shown
Wikidata wikidata answeredasked 2026-10-21IPNI and POWO linked by Kew's number for Caucaea nubigena (Lindl.) N.H.Williams & M.W.Chase (the item's: IPNI 20004322-1, POWO 1049581-2)
Wikipedia wikipedia nothing to reportasked 2026-10-21
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 2026-10-21
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 7 datasets via GBIF.org; each carries its own licence.

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