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Aristolochia odoratissima; photograph Andrés Ramírez-Barrera, CC BY, iNaturalist via GBIF CC BYAndrés Ramírez-Barrera, CC BY, iNaturalist via GBIF

Aristolochia odoratissima L.

Fragrant dutchman's pipe

Aristolochiaceae · Mexico Gulf, Mexico Southwest +19

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Aristolochia odoratissima, photograph Arturo Castro Castro, CC BY, iNaturalist via GBIFAristolochia odoratissima, photograph Arturo Castro Castro, CC BY, iNaturalist via GBIFAristolochia odoratissima, photograph Vincent A. Vos, CC BY, iNaturalist via GBIFAristolochia odoratissima, photograph Vincent A. Vos, CC BY, iNaturalist via GBIFAristolochia odoratissima, photograph Paulo Mascaretti, CC0, iNaturalist via GBIFAristolochia odoratissima, photograph Sobeida Morales, CC0, iNaturalist via GBIF 24 photographs ›
Habitat figures
Coldest month, mean nightly low
19.6°C
Jan at the habitat, not a floor; extremes not used (the weather cell's ground is too far off) CHELSA
Warmest month, mean daily high
30°C
Apr at the habitat CHELSA
Rain a year (median across the range)
1,911mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
29–39DLI
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 October (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.

About the genus · Aristolochia

Aristolochia is a large plant genus with over 500 species that is the type genus of the family Aristolochiaceae. Its members are commonly known as birthwort, pipevine or Dutchman's pipe and are widespread and occur in diverse climates. Some species, like A. utriformis and A. westlandii, are threatened with extinction.

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

Cultivation

Seasons

The rain rule reads a sharp season: 70% of the median year's rain (1,408 mm of 1,914 mm) falls in June to October. The temperature curve is flat, 3.0 °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 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

1,914 mm in the median year at the habitat, 1,408 mm of it June to October. Wettest month September at 336 mm, driest month February at 39 mm. Across the grid cells of the range the year's total runs 1,232 mm to 3,843 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,911 mm, is the year's rain at the top of the page; the 1,914 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: 29 to 39 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 23, the highest 90th-percentile month 47).

Warmth and air
Temperature

Monthly means: the coldest month's mean nightly low 19.6 °C in January (across the grid cells of the range 14.3 °C to 23.3 °C), the warmest month's mean daily high 29.5 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 19.6 °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.

Humidity

Relative humidity at the habitat: 61 to 67% 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 Aristolochia odoratissima through the yearWarmest month April, mean daily high 30 °C; coldest month January, mean nightly low 19.6 °C; 1,914 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, southern hemisphere.10°15°20°25°30°35°°C · day and nightcold quarter0100200300400500600mm rainDLI 29–39RH 61–67%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 75 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 °C27 / 23–3128 / 24–3229 / 25–3230 / 26–3229 / 26–3228 / 25–3128 / 25–3029 / 25–3129 / 25–3128 / 25–3028 / 24–3027 / 23–30
Night °C20 / 14–2320 / 15–2421 / 15–2422 / 17–2422 / 18–2422 / 19–2422 / 18–2422 / 18–2522 / 18–2522 / 18–2421 / 17–2420 / 15–23
Rain mm41 / 12–26039 / 14–25748 / 4–25157 / 2–431132 / 12–520257 / 92–497304 / 97–508301 / 82–461336 / 103–473210 / 112–469134 / 23–30555 / 14–236
DLI31 / 24–3535 / 28–3837 / 30–4339 / 29–4736 / 27–4734 / 26–3733 / 26–3734 / 29–3732 / 28–3631 / 27–3530 / 24–3329 / 23–34
RH %62 / 53–7061 / 53–7061 / 53–7062 / 52–7064 / 58–7067 / 63–7066 / 61–7167 / 61–7167 / 62–7367 / 63–7165 / 60–7164 / 56–70

Records on both sides of the equator: the 18 cells at least 10° south of it have seasons six months apart and are left out, not combined into a year no place has. These figures are across the 75 cells that remain: the 49 at least 10° north and the 26 within 10° of the equator, which stay in either way.

The daily extremes were not used: the correction for elevation, -1474 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 16.1 °C, 1st-percentile night 18.4 °C.

How this section is made
Each figure is the median across the 75 grid cells holding the 94 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 1714:2128 (4.275, -73.575). 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 75 distinct grid cells holding 94 of the 114 in-range records on the northern side of the equator (49 cells poleward of 10° north, 18 poleward of 10° south: the two sides' seasons are not combined, and cells within 10° of the equator stay in); extremes and elevation at the typical cell 1714:2128 (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 4.50_-73.750, lapse-corrected -1474 m at 6.5 °C/km. Elevation: ETOPO 2022, 626 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 Gulf, Mexico Southwest, Mexico Southeast, Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, Venezuela, Bolivia, Colombia, Ecuador, Peru, Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil North, Brazil South, Argentina Northeast, Paraguay · introduced: Queensland, Jamaica, Leeward Is. AB Ant, Trinidad-Tobago, Windward Is., Galápagos · 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-17.742, -63.2 · in the densest population, 50 records (23% of those in range)
Kew's description“climber” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 214 georeferenced records inside the native range; the climate across the range on the 94 of them in the land cells it reads, of 114 placed to within 10 km; the map shows only the 145 openly licensed ones, which alone would put the marker 9 km away. 22 records outside the WCVP native range not used. 100 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 4° block of the 214 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Aristolochia odoratissima, photograph 1did not loadAristolochia odoratissima, photograph 2did not loadAristolochia odoratissima, photograph 3did not loadAristolochia odoratissima, photograph 4did not loadAristolochia odoratissima, photograph 5did not loadAristolochia odoratissima, photograph 6did not load

Photographs: Arturo Castro Castro, CC BY, iNaturalist via GBIF (2); Vincent A. Vos, CC BY, iNaturalist via GBIF (2); Paulo Mascaretti, CC0, iNaturalist via GBIF; Sobeida Morales, CC0, iNaturalist via GBIF.

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

Byrsonima crassifolia Byrsonima crassifolia Golden spoon Photo: CC BY, Carlos Domínguez-RodríguezFicus maxima Ficus maxima Hicatee fig Photo: CC0, author not statedAcrocomia aculeata Acrocomia aculeata Arecaceae Photo: CC BY, nasuaOlyra latifolia Olyra latifolia Carrycillo Photo: CC BY, Guillaume DelaitreLygodium venustum Lygodium venustum Monarch climbing fern Photo: CC BY, zebedeugalinhaLeptospron adenanthum Leptospron adenanthum Wild pea Photo: CC BY, Romi Galeota Lencina

Other Aristolochia 77 in the reference

Aristolochia acuminata Aristolochia acuminata Indian birthwort Photo: CC BY, Cheongweei GanAristolochia anguicida Aristolochia anguicida Harlequin dutchman's pipe Photo: CC BY, Skjold SøndergaardAristolochia arborea Aristolochia arborea Aristolochiaceae Photo: CC BY-SA, Kurt StüberAristolochia arcuata Aristolochia arcuata Aristolochiaceae Photo: CC BY, Celso Henrique Varela RiosAristolochia argentina Aristolochia argentina Aristolochiaceae Photo: CC BY, Tomás TamagnoAristolochia australopithecurus Aristolochia australopithecurus Cairns Birdwing Butterfly plant Photo: CC0, Poyt448 Peter WoodardAristolochia baetica Aristolochia baetica Andalusian Dutchman's Pipe Photo: CC0, Alison Westwood Aristolochia bidoupensis Aristolochiaceae Aristolochia bottae Botta's birthwort Aristolochia bracteolata Aristolochia bracteolata Aristolochiaceae Photo: CC0, Jaya Rakesh Aristolochia caulialata Aristolochiaceae Aristolochia cauliflora Aristolochia cauliflora Aristolochiaceae Photo: CC BY-SA, Danny S. all 78 ›

Names & registers

Also known as Aristolochia aurantiaca; Aristolochia cordata; Aristolochia glaziouvii; Aristolochia glaziovii; Aristolochia hassleriana var. guaranitica and 23 more. (GBIF Backbone)

Registers not checked Wikidata did not answer when this page was built, so the links it gives (POWO, IPNI, World Flora Online, Wikipedia) were not checked; any shown here are kept from an earlier build. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
GBIF

The record

Family
Aristolochiaceae
Described by
L.
Native to
Mexico Gulf, Mexico Southwest, Mexico Southeast +18
Wild records
214 in range · 145 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; 5 records within 1 km of a botanic garden, herbarium or zoo left out (2 at a botanic garden or arboretum, 1 at a herbarium, 2 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 4.50_-73.750, lapse-corrected -1474 m at 6.5 °C/km; read, and set aside: the correction for elevation, -1474 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 failedasked 2026-10-21query.wikidata.org timeout (batched: Wikidata's query service, 200 GBIF keys)
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 68 datasets via GBIF.org; each carries its own licence.

Cultifolio

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