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Zamia herrerae Calderón & Standl.

Zamiaceae · Mexico Southeast, El Salvador +1

Cited as Kew's World Checklist cites it, Zamia herrerae Calderón & Standl.: GBIF's backbone key for this page carries the name with another author, S.Calderón & Standl.

Photographs not checked iNaturalist was skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
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Sow seed
Habitat figures
Cold floor (1 night in 100)
17.5°C
Record low 14.6 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
32°C
Mar and Apr at the habitat CHELSA
Rain a year (median across the range)
2,450mm
8 months of 25 mm or more in the median year CHELSA
Open-sky light
33–43DLI
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, June to September (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.

Summary

Zamia herrerae is a species of plant in the family Zamiaceae. It is found in El Salvador, Guatemala, Honduras, and Mexico. It is threatened by habitat loss.

Quoted from Wikipedia, "Zamia herrerae", CC BY-SA 4.0.

About the genus · Zamia

Zamia is a genus of cycad of the family Zamiaceae, native to North America from the United States throughout the West Indies, Central America, and South America as far south as Bolivia. The genus is considered to be the most ecologically and morphologically diverse of the cycads, and is estimated to have originated about 68.3 million years ago.

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

Cultivation

Seasons

The rain rule reads a sharp season: 70% of the median year's rain (1,839 mm of 2,493 mm) falls in June to September. The temperature curve is flat, 3.1 °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

2,493 mm in the median year at the habitat, 1,839 mm of it June to September. Wettest month September at 527 mm, driest month January at 3 mm; 1 month under 5 mm. Across the grid cells of the range the year's total runs 1,979 mm to 3,690 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 2,450 mm, is the year's rain at the top of the page; the 2,493 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: 33 to 43 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 30, 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 17.5 °C, the absolute minimum 14.6 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 37.9 °C. Monthly means: the coldest month's mean nightly low 20.0 °C in January (across the grid cells of the range 13.2 °C to 21.0 °C), the warmest month's mean daily high 32.2 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 17.5 °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: 55 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. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected -202 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 Zamia herrerae through the yearWarmest months March and April, mean daily high 32 °C; coldest month January, mean nightly low 20.0 °C; 2,493 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°15°20°25°30°35°40°37.9° 99th-percentile day, NASA POWER14.6° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0200400600800mm rainDLI 33–43RH 55–68%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 10 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 °C30 / 25–3231 / 26–3332 / 27–3332 / 27–3431 / 25–3229 / 24–3030 / 24–3130 / 24–3129 / 24–3029 / 24–3030 / 24–3030 / 24–31
Night °C20 / 13–2121 / 14–2221 / 14–2223 / 16–2323 / 16–2423 / 16–2423 / 16–2423 / 16–2423 / 16–2422 / 16–2322 / 14–2221 / 14–21
Rain mm3 / 1–148 / 5–1314 / 7–4149 / 31–111238 / 183–407437 / 378–627406 / 315–539469 / 342–624527 / 438–734277 / 208–45456 / 41–1019 / 3–23
DLI34 / 34–3638 / 38–4043 / 42–4343 / 42–4440 / 38–4136 / 32–3638 / 36–3937 / 35–3833 / 30–3433 / 32–3433 / 33–3533 / 32–35
RH %56 / 55–5655 / 55–5656 / 55–5759 / 57–6065 / 62–6568 / 66–6966 / 64–6767 / 64–6768 / 66–6965 / 61–6761 / 58–6358 / 56–59
How this section is made
Each figure is the median across the 10 grid cells holding the 13 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 1477:1724 (16.125, -93.775). Over 44 years there: absolute minimum 14.6 °C, 1st-percentile night 17.5 °C, 99th-percentile day 37.9 °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 10 distinct grid cells holding 13 of the 13 in-range records; extremes and elevation at the typical cell 1477:1724 (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 16.00_-93.750, lapse-corrected -202 m at 6.5 °C/km. Elevation: ETOPO 2022, 161 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 Southeast, El Salvador, Guatemala · 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 marker15.364, -92.675 · in the densest population, 20 records (67% of those in range)
Doubtfully present inHonduras, Nicaragua · recorded by WCVP as doubtfully present: not part of the range records are tested against
Kew's description“subshrub” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 30 georeferenced records inside the native range; the climate across the range on the 13 of them placed to within 10 km; the map shows only the 23 openly licensed ones, which alone would put the marker in the same place. 1 record outside the WCVP native range not used. 17 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 30 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Not checked. iNaturalist was skipped (not asked) when this page was built; GBIF's observation records with coordinates hold none. Not a statement that none exist.

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

Encyclia papillosa Encyclia papillosa Orchidaceae Photo: CC BY, Jaime Navarrete RivasDrosera indica Drosera indica Indian Sundew Photo: CC BY-SA, Manoj KaringamadathilPlumbago indica Plumbago indica Whorled plantain Photo: CC BY, Ravuri Krishna ChaitanyaAcanthocereus hirschtianus Acanthocereus hirschtianus Cactaceae Photo: CC0, author not statedPterocarpus marsupium Pterocarpus marsupium Malabar kino Photo: CC BY, rajesh rockyDipterocarpus alatus Dipterocarpus alatus Hairy-leaf apitong Photo: CC BY, Eugene Popov

Other Zamia 37 in the reference

Zamia angustifolia Zamia angustifolia Cycad Photo: CC BY-SA, Stan ShebsZamia cunaria Zamia cunaria Zamiaceae Photo: CC BY, Kai Squires Zamia elegantissima Zamiaceae Zamia encephalartoides Cycad Zamia erosa Zamia erosa Zamia Photo: CC BY-SA, Kurt MillerZamia fairchildiana Zamia fairchildiana Zamiaceae Photo: CC BY, chrisdtZamia fischeri Zamia fischeri Zamiaceae Photo: CC BY-SA, Juan Cruzado CortésZamia furfuracea Zamia furfuracea Cardboard palm Photo: CC BY, Nash TurleyZamia huilensis Zamia huilensis Zamiaceae Photo: CC BY, Pompeya Reserva Natural Zamia imperialis Zamiaceae Zamia incognita Zamia incognita Zamiaceae Photo: CC0, author not stated Zamia inermis Zamiaceae all 38 ›

Names & registers

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Zamiaceae
Described by
Calderón & Standl.
Native to
Mexico Southeast, El Salvador, Guatemala
Wild records
30 in range · 23 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 2026-10-22GBIF's key 5284037 is Zamia herrerae S.Calderón & Standl.; the page links Kew's Zamia herrerae Calderón & Standl., and the name is cited as Kew cites it
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; 6 records within 1 km of a botanic garden, herbarium or zoo left out (6 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 16.00_-93.750, lapse-corrected -202 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild nothing to reportasked 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 nothing to reportasked 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 12 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…