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Cyathea fulva; photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIF CC BYNeptalí Ramírez Marcial, CC BY, iNaturalist via GBIF

Cyathea fulva (M.Martens & Galeotti) Fée

Cyatheaceae · Mexico Central, Mexico Northeast +5

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Cyathea fulva, photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIFCyathea fulva, photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIFCyathea fulva, photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIFCyathea fulva, photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIFCyathea fulva, photograph Neptalí Ramírez Marcial, CC BY, iNaturalist via GBIF 6 photographs ›
Habitat figures
Cold floor (1 night in 100)
5.3°C
Record low -1.7 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
24°C
Apr and May at the habitat CHELSA
Rain a year (median across the range)
2,039mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
25–40DLI
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 June to October, read as a summer growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,580 mm of 2,076 mm) falls in June to October, warmer than the year (wet-season mean 18.8 °C against a yearly mean of 17.6 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to April.

Rain

2,076 mm in the median year at the habitat, 1,580 mm of it June to October. Wettest month September at 382 mm, driest month March at 43 mm. Across the grid cells of the range the year's total runs 1,186 mm to 3,195 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 2,039 mm, is the year's rain at the top of the page; the 2,076 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: 25 to 40 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 44).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 5.3 °C, the absolute minimum -1.7 °C, 2 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 33.6 °C. Monthly means: the coldest month's mean nightly low 9.7 °C in January (across the grid cells of the range 6.2 °C to 15.4 °C), the warmest month's mean daily high 24.4 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 5.3 °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: 61 to 71% 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 +646 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 Cyathea fulva through the yearWarmest months April and May, mean daily high 24 °C; coldest month January, mean nightly low 9.7 °C; 2,076 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.-10°0°10°20°30°40°frost33.6° 99th-percentile day, NASA POWER-1.7° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0100200300400500600mm rainDLI 25–40RH 61–71%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 107 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 °C20 / 16–2421 / 17–2623 / 19–2724 / 21–2924 / 21–2923 / 20–2723 / 19–2723 / 19–2722 / 18–2621 / 18–2621 / 17–2520 / 16–24
Night °C10 / 6–1510 / 7–1612 / 8–1714 / 10–1915 / 11–2015 / 12–2115 / 11–2015 / 11–2015 / 11–2014 / 10–1912 / 8–1710 / 7–16
Rain mm51 / 9–10150 / 10–9943 / 11–8074 / 29–114130 / 69–208328 / 176–489327 / 184–508326 / 171–529382 / 236–560217 / 131–34189 / 35–20159 / 12–147
DLI26 / 22–3431 / 26–3837 / 32–4340 / 36–4440 / 37–4235 / 31–3634 / 33–3834 / 32–3730 / 28–3329 / 26–3227 / 23–3325 / 21–32
RH %65 / 57–6963 / 56–6861 / 55–6662 / 56–6565 / 60–6769 / 66–7169 / 65–7169 / 66–7271 / 68–7369 / 65–7167 / 61–6966 / 58–70
How this section is made
Each figure is the median across the 107 grid cells holding the 141 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 1461:1683 (16.925, -95.825). Over 44 years there: absolute minimum -1.7 °C, 1st-percentile night 5.3 °C, 99th-percentile day 33.6 °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 107 distinct grid cells holding 141 of the 141 in-range records; extremes and elevation at the typical cell 1461:1683 (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 17.00_-95.625, lapse-corrected +646 m at 6.5 °C/km. Elevation: ETOPO 2022, 1468 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.
NativeMexico Central, Mexico Northeast, Mexico Gulf, Mexico Southwest, Mexico Southeast, Guatemala, Honduras · 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 marker17.868, -96.84 · in the densest population, 150 records (53% of those in range)
Kew's description“wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 285 georeferenced records inside the native range; the climate across the range on the 141 of them placed to within 10 km; the map shows only the 262 openly licensed ones, which alone would put the marker 4 km away. 167 records outside the WCVP native range not used. 144 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 285 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Cyathea fulva, photograph 1did not loadCyathea fulva, photograph 2did not loadCyathea fulva, photograph 3did not loadCyathea fulva, photograph 4did not loadCyathea fulva, photograph 5did not load

Photographs: Neptalí Ramírez Marcial, 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.

Chamaedorea oreophila Chamaedorea oreophila Arecaceae Photo: Public domain, DaderotBartlettina sordida Bartlettina sordida Blue Mist Flower Photo: CC BY, Tom BeardLeochilus carinatus Leochilus carinatus Orchidaceae Photo: CC BY-SA, Oscar C. González MartínezOreopanax echinops Oreopanax echinops Araliaceae Photo: CC BY, Neptalí Ramírez MarcialRubus coriifolius Rubus coriifolius Rosaceae Photo: CC BY, Neptalí Ramírez MarcialPeperomia quadrifolia Peperomia quadrifolia Fourleaf peperomia Photo: CC BY, Letizia Weichgrebe

Other Cyathea 12 in the reference

Cyathea arborea Cyathea arborea West Indian treefern Photo: CC BY, Guillaume DelaitreCyathea caracasana Cyathea caracasana Cyatheaceae Photo: CC BY-SA, XemenenduraCyathea conjugata Cyathea conjugata Cyatheaceae Photo: CC BY, Luis G RestrepoCyathea costaricensis Cyathea costaricensis Cyatheaceae Photo: CC BY, Alexis López HernándezCyathea delgadii Cyathea delgadii Cyatheaceae Photo: CC0, author not statedCyathea divergens Cyathea divergens Cyatheaceae Photo: CC BY, Jonatan Castro Hernández Cyathea frigida Cyatheaceae Cyathea horrida Cyathea horrida Deepwoods fern Photo: CC BY, Karen Saunders Cyathea lasiosora Cyatheaceae Cyathea microdonta Cyathea microdonta Cyatheaceae Photo: CC BY, Gabriel FernandesCyathea phalerata Cyathea phalerata Cyatheaceae Photo: CC BY-SA, Wallace Carneiro Almeida Cyathea poeppigii Cyatheaceae

Names & registers

Also known as Alsophila delicatula; Alsophila fulva; Cyathea asperula; Cyathea conspersa; Cyathea delicatula and 7 more. (GBIF Backbone)

Kew accepts as species of their own Cyathea onusta: older names in GBIF's record of this species that Kew's World Checklist accepts as other species. (WCVP, RBG Kew, file of 2026-06-04)

GBIFPOWOIPNIWFOWikidata

The record

Family
Cyatheaceae
Described by
(M.Martens & Galeotti) Fée
Native to
Mexico Central, Mexico Northeast, Mexico Gulf +4
Wild records
285 in range · 262 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; 5 records within 1 km of a botanic garden, herbarium or zoo left out (5 at a botanic garden or arboretum; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 17.00_-95.625, lapse-corrected +646 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22found by the GBIF record of Alsophila fulva, an older name with the same type; IPNI and POWO linked by Kew's number for Cyathea fulva (M.Martens & Galeotti) Fée (the item's: IPNI 17016930-1, POWO 17016930-1)
Wikipedia wikipedia nothing to reportasked 2026-10-22
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 2026-10-22
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 67 datasets via GBIF.org; each carries its own licence.

Cultifolio

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