10 photographs › At a glance
- Jan, shaded
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- May
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- Oct, shaded
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- Dec, shaded
Summary
Amorphophallus hewittii is geophytic aroid of family Araceae.
Quoted from Wikipedia, "Amorphophallus hewittii", CC BY-SA 4.0.
About the genus · Amorphophallus
Amorphophallus is a large genus of some 200 tropical and subtropical tuberous herbaceous plants from the arum family (Araceae), native to Asia, Africa, Australia and various oceanic islands. The genus includes the Titan arum of Indonesia, which has the largest inflorescence in the genus, and is known as the 'corpse flower' for the pungent odour it produces during its flowering period, which can take up to seven years of growth before it occurs.
Quoted from Wikipedia, "Amorphophallus", CC BY-SA 4.0.
Cultivation
Grouped as a bulb, tuber or caudex, listed under the genus Amorphophallus in the archetype table, and Kew describes it as “tuberous geophyte”.
Seasons
The rain rule reads a sharp season: 70% of the median year's rain (3,126 mm of 4,441 mm) falls in October to April. The temperature curve is flat, 1.2 °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 habitat lies within 10° of the equator, where the shift rule does not apply, so they are not shifted for a collection elsewhere.
Rain
4,441 mm in the median year at the habitat, 3,126 mm of it October to April. Wettest month January at 673 mm, driest month July at 233 mm. Across the grid cells of the range the year's total runs 3,869 mm to 4,902 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 4,486 mm, is the year's rain at the top of the page; the 4,441 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: 27 to 35 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 25, the highest 90th-percentile month 36).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 22.4 °C, the absolute minimum 20.9 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 30.7 °C. Monthly means: the coldest month's mean nightly low 21.8 °C in January (across the grid cells of the range 20.7 °C to 22.9 °C), the warmest month's mean daily high 30.2 °C in August (median year across the grid cells of the range, CHELSA). Cold floor: 22.4 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).
Relative humidity at the habitat: 66 to 72% 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 -41 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.
Group. Listed under the genus Amorphophallus in the archetype table, and Kew describes it as “tuberous geophyte”. 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 28 °C in Jan and Dec to 30 °C in Apr, May, Jun, Jul, Aug and Sep; mean nightly low from 22 °C in Jan, Feb, Mar, Apr, Jun, Jul, Aug, Sep, Oct, Nov and Dec to 23 °C in May. The cold quarter, Oct to Dec, is the three months around the coldest month's mean nightly low, centred on the 11 months in a row that tie for it. 4,441 mm of rain in the median year (the twelve monthly medians added), the wettest month Jan. The bands show the 10th to 90th percentile across 11 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was 20.9 °C and the 99th-percentile day 30.7 °C; neither is dated to a month. 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 | 28 / 27–29 | 29 / 28–30 | 29 / 28–30 | 30 / 29–30 | 30 / 29–31 | 30 / 29–31 | 30 / 29–30 | 30 / 29–31 | 30 / 29–30 | 29 / 28–30 | 29 / 28–30 | 28 / 27–29 |
| Night °C | 22 / 21–23 | 22 / 21–23 | 22 / 21–23 | 22 / 21–24 | 23 / 22–24 | 22 / 21–24 | 22 / 21–23 | 22 / 21–23 | 22 / 21–23 | 22 / 21–23 | 22 / 21–23 | 22 / 21–23 |
| Rain mm | 673 / 441–873 | 446 / 305–615 | 371 / 323–395 | 353 / 249–407 | 291 / 228–399 | 234 / 203–281 | 233 / 202–273 | 250 / 224–291 | 307 / 272–347 | 364 / 304–411 | 394 / 380–439 | 525 / 415–615 |
| DLI | 27 / 25–30 | 31 / 29–32 | 32 / 30–35 | 33 / 31–35 | 33 / 31–35 | 33 / 31–34 | 34 / 32–35 | 35 / 33–36 | 33 / 31–36 | 31 / 29–33 | 29 / 27–31 | 27 / 25–29 |
| RH % | 72 / 70–73 | 70 / 69–72 | 70 / 68–71 | 70 / 68–71 | 69 / 68–71 | 68 / 66–69 | 67 / 65–68 | 66 / 65–67 | 68 / 66–69 | 69 / 68–71 | 70 / 68–72 | 72 / 69–73 |
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: (c) Rhonda Ridley, some rights reserved (CC BY-SA); (c) Bernard DUPONT, some rights reserved (CC BY) (2); (c) Gianmaria Bonari, some rights reserved (CC BY) (3).
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Baccaurea angulata Red angle tampoi Photo: CC BY, ml_ls
Musa borneensis Angkadan banana Photo: CC BY, Cheongweei Gan
Dendrobium setifolium Orchidaceae Photo: CC BY, Joss Carr Rubroshorea macrophylla Dipterocarpaceae 
Aeschynanthus tricolor Gesneriaceae Photo: CC BY, Kai Squires
Musa campestris Swamp Banana Photo: CC BY, Kai SquiresOther Amorphophallus 42 in the reference
Amorphophallus atroviridis Araceae Photo: CC BY, Utain Pummarin Amorphophallus borneensis Araceae 
Amorphophallus bulbifer Araceae Photo: CC0, author not stated Amorphophallus carneus Araceae Amorphophallus cicatricifer Araceae 
Amorphophallus coaetaneus Araceae Photo: CC BY-SA, Pavel Kirillov
Amorphophallus consimilis Araceae Photo: CC BY, Lucy Keith-Diagne all 43 ›Names & registers
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 2026-10-21
gbif.species answeredasked 2026-10-21gbif.synonyms answeredasked 2026-10-21gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21wcvp.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 2026-10-21climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 1.50_110.000, lapse-corrected -41 m at 6.5 °C/kmwikidata answeredasked 2026-10-21wikipedia answeredasked 2026-10-21inat.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 2026-10-21none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rulescommons answeredasked 2026-10-21openalex 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 3 datasets via GBIF.org; each carries its own licence.