At a glance
- Jan
- Feb
- Mar
- Apr
- May, shaded
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep, shaded
- Oct, shaded
- Nov
- Dec
From few records: 3 records in 3 grid cells. The records.
Summary
Oncidium constrictum, synonym Odontoglossum constrictum, is a species of orchid found from Colombia to northern Venezuela.
Quoted from Wikipedia, "Oncidium constrictum", CC BY-SA 4.0.
About the genus · Oncidium
Oncidium is a genus of about 370 species of orchid in the family Orchidaceae. It is distributed across tropical and subtropical America from Mexico, Central America and the West Indies to northern Argentina, with one species (O. ensatum) extending into Florida. Common names for plants in this genus include dancing-lady orchid.
Quoted from Wikipedia, "Oncidium", CC BY-SA 4.0.
Cultivation
Grouped as an orchid, listed under the genus Oncidium in the archetype table, and Kew describes it as “pseudobulbous epiphyte”.
Seasons
The rain rule reads a sharp season: 70% of the median year's rain (1,418 mm of 1,778 mm) falls in May to October. The temperature curve is flat, 1.9 °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, northern hemisphere. The temperature curve moves under 4 °C between the warmest and coldest month, where the shift rule does not apply, so they are not shifted for a collection elsewhere.
Rain
1,778 mm in the median year at the habitat, 1,418 mm of it May to October. Wettest month August at 276 mm, driest month March at 23 mm. Across the grid cells of the range the year's total runs 1,550 mm to 3,350 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,968 mm, is the year's rain at the top of the page; the 1,778 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: 29 to 38 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 20, the highest 90th-percentile month 39).
Warmth and air
Monthly means: the coldest month's mean nightly low 12.7 °C in January (across the grid cells of the range 12.5 °C to 20.4 °C), the warmest month's mean daily high 22.8 °C in March (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 12.7 °C, the coldest month's mean nightly low, January, 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.
Relative humidity at the habitat: 61 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.
Group. Listed under the genus Oncidium in the archetype table, and Kew describes it as “pseudobulbous epiphyte”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.
Climate across the habitat
From few records: this habitat climate is read from 3 records in 3 grid cells; a page says so under 12 records or 5 cells, and shows the figures as read.
Habitat months, northern hemisphere
Mean daily high from 20 °C in Nov and Dec to 23 °C in Mar; mean nightly low from 13 °C in Jan, Feb and Dec to 14 °C in Mar, Apr, May, Jun, Jul, Aug, Sep, Oct and Nov. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low, centred on the 3 months in a row that tie for it. 1,778 mm of rain in the median year (the twelve monthly medians added), the wettest month Aug. The bands show the 10th to 90th percentile across 3 habitat cells. Beneath: daily light integral and relative humidity through the year, each on its own scale.
Figures by month
| Figure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 21 / 18–29 | 22 / 19–30 | 23 / 19–31 | 22 / 19–30 | 21 / 18–28 | 21 / 18–27 | 21 / 18–27 | 21 / 18–28 | 21 / 18–28 | 21 / 18–29 | 20 / 17–28 | 20 / 18–28 |
| Night °C | 13 / 13–20 | 13 / 13–21 | 14 / 13–22 | 14 / 13–22 | 14 / 13–21 | 14 / 13–21 | 14 / 13–20 | 14 / 13–20 | 14 / 13–21 | 14 / 13–21 | 14 / 13–21 | 13 / 12–21 |
| Rain mm | 24 / 15–198 | 25 / 16–206 | 23 / 22–256 | 93 / 91–329 | 205 / 166–339 | 268 / 182–331 | 247 / 197–392 | 276 / 226–338 | 238 / 200–296 | 184 / 147–334 | 140 / 92–309 | 55 / 40–254 |
| DLI | 32 / 25–33 | 35 / 26–36 | 38 / 27–39 | 34 / 23–35 | 31 / 21–32 | 29 / 20–32 | 30 / 22–33 | 33 / 23–34 | 34 / 23–35 | 31 / 22–34 | 29 / 20–31 | 29 / 22–31 |
| RH % | 62 / 58–74 | 62 / 56–73 | 61 / 55–72 | 64 / 58–72 | 68 / 65–72 | 68 / 68–72 | 68 / 68–72 | 68 / 68–72 | 67 / 66–73 | 66 / 65–73 | 68 / 65–75 | 65 / 62–75 |
The daily extremes were not used: the correction for elevation, +1228 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 9.6 °C, 1st-percentile night 11.4 °C.
How this section is made
Natural habitat
How this section is made
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Epidendrum laucheanum Orchidaceae Photo: CC0, author not stated
Tillandsia guatemalensis Pink quill Photo: CC BY, Neptalí Ramírez Marcial
Maxillaria hematoglossa Orchidaceae Photo: CC0, Sobeida Morales
Callisia warszewicziana Commelinaceae Photo: CC0, Sobeida Morales
Desmodium intortum Greenleaf ticktrefoil Photo: CC BY, Archer Silverman
Strobilanthes kunthiana Acanthaceae Photo: CC0, author not statedOther Oncidium 69 in the reference
Oncidium alexandrae Orchidaceae Photo: CC BY, Carlos Torrente
Oncidium altissimum Wydler's dancing-lady orchid Photo: CC BY, chrisdt Oncidium ansiferum Orchidaceae Oncidium anthocrene Orchidaceae Oncidium astranthum Orchidaceae 
Oncidium baueri Orchidaceae Photo: CC BY, Diogo Luiz Oncidium boothianum Orchidaceae 
Oncidium bracteatum Orchidaceae Photo: CC0, author not stated
Oncidium bryolophotum Orchidaceae Photo: CC0, author not stated
Oncidium cariniferum Orchidaceae Photo: CC BY, River Ahlquist
Oncidium cheirophorum Orchidaceae Photo: CC BY-SA, Lesley Aguirre all 70 ›Names & registers
Also known as Odontoglossum boddaertianum; Odontoglossum constrictum; Odontoglossum constrictum f. castaneum; Odontoglossum constrictum f. pallens; Odontoglossum constrictum var. castaneum and 6 more. (GBIF Backbone)
The record
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 answeredasked 2026-10-22gbif.synonyms answeredasked 2026-10-22gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22wcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 10.50_-67.500, lapse-corrected +1228 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1228 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 shownwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.taxon not askedinat.photos.wild not askedinat.photos.cultivated not askedgbif.media nothing to reportasked 2026-10-22commons answeredasked 2026-10-22openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery 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.