62 photographs › At a glance
- Jan
- Feb
- Mar
- Apr
- May
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep, shaded
- Oct
- Nov
- Dec
Summary
Oncidium graminifolium is a species of orchid occurring from Mexico to Central America.
Quoted from Wikipedia, "Oncidium graminifolium", 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 summer growing season: 70% of the median year's rain (1,016 mm of 1,320 mm) falls in June to September, warmer than the year (wet-season mean 17.4 °C against a yearly mean of 16.4 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to March.
Rain
1,320 mm in the median year at the habitat, 1,016 mm of it June to September. Wettest month July at 266 mm, driest month March at 12 mm. Across the grid cells of the range the year's total runs 856 mm to 1,784 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,334 mm, is the year's rain at the top of the page; the 1,320 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: 31 to 47 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 28, the highest 90th-percentile month 49).
Warmth and air
Monthly means: the coldest month's mean nightly low 7.3 °C in January (across the grid cells of the range 3.9 °C to 11.2 °C), the warmest month's mean daily high 25.3 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 7.3 °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: 49 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
Habitat months, northern hemisphere
Mean daily high from 20 °C in Dec to 25 °C in Apr and May; mean nightly low from 7 °C in Jan to 13 °C in Jun, Jul, Aug and Sep. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low. 1,320 mm of rain in the median year (the twelve monthly medians added), the wettest month Jul. The bands show the 10th to 90th percentile across 157 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 / 17–24 | 22 / 19–26 | 24 / 20–27 | 25 / 23–29 | 25 / 22–30 | 23 / 19–28 | 22 / 19–25 | 22 / 19–25 | 21 / 18–25 | 21 / 18–25 | 21 / 18–25 | 20 / 17–24 |
| Night °C | 7 / 4–11 | 8 / 4–12 | 9 / 5–12 | 11 / 8–14 | 12 / 9–16 | 13 / 10–17 | 13 / 10–17 | 13 / 10–17 | 13 / 10–16 | 11 / 9–15 | 9 / 7–13 | 8 / 5–12 |
| Rain mm | 21 / 5–47 | 16 / 10–25 | 12 / 5–22 | 21 / 5–58 | 76 / 19–180 | 236 / 155–336 | 266 / 166–364 | 260 / 167–361 | 254 / 148–347 | 118 / 57–171 | 27 / 12–54 | 13 / 7–41 |
| DLI | 32 / 29–35 | 38 / 35–40 | 44 / 40–46 | 47 / 42–49 | 45 / 39–49 | 35 / 31–40 | 35 / 32–38 | 35 / 31–37 | 31 / 28–34 | 32 / 30–35 | 32 / 30–35 | 31 / 28–34 |
| RH % | 53 / 48–62 | 51 / 46–60 | 49 / 43–58 | 49 / 42–60 | 54 / 47–63 | 65 / 60–69 | 66 / 63–69 | 67 / 63–69 | 68 / 63–71 | 63 / 57–68 | 58 / 51–65 | 55 / 49–63 |
The daily extremes were not used: the correction for elevation, +1023 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 5.5 °C.
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: (c) Carlos Domínguez-Rodríguez, some rights reserved (CC BY) (6).
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Erycina hyalinobulbon Orchidaceae Photo: CC0, author not stated
Trichocentrum cavendishianum Orchidaceae Photo: CC BY, José Javier Barrios Flores
Stanhopea hernandezii Orchidaceae Photo: CC BY-SA, Orchi
Cladocolea loniceroides Loranthaceae Photo: CC BY-SA, Claudia Ramírez
Cosmos crithmifolius Asteraceae Photo: CC BY, Carlos Martínez
Prosthechea citrina Orchidaceae Photo: CC BY, Alberto AlcaláOther 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 Concocidium graminifolium; Cyrtochilum filipes; Cyrtochilum graminifolium; Oncidium filipes; Oncidium graminifolium var. filipes and 3 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 19.50_-104.375, lapse-corrected +1023 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1023 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.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 2026-10-22inat.photos.cultivated not askedgbif.media 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 26 datasets via GBIF.org; each carries its own licence.