Corymbia ptychocarpa, Litchfield National Park, Litchfield Park, NT, AU

Corymbia ptychocarpa (F.Muell.) K.D.Hill & L.A.S.Johnson

spring-bloodwood, swamp bloodwood, swamp-bloodwood, خوندرخت باتلاق

Climate known 33 photographs

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

Summary

Corymbia ptychocarpa, commonly known as swamp bloodwood or spring bloodwood, is a species of tree that is endemic to northwestern Australia. It has rough bark on the trunk and branches, broadly lance-shaped adult leaves, flower buds in groups of seven, creamy yellow, pink or red flowers, and barrel-shaped, ribbed fruit.

Text from Wikipedia, “Corymbia ptychocarpa”, CC BY-SA 4.0, quoted as written. Kept separate from everything derived here.

About the genus · Corymbia

Corymbia, commonly known as bloodwoods, is a genus of about one hundred species of tree that, along with Eucalyptus, Angophora and several smaller groups, are referred to as eucalypts. Until 1990, corymbias were included in the genus Eucalyptus and there is still considerable disagreement among botanists as to whether separating them is valid. As of January 2020, Corymbia is an accepted name at the Australian Plant Census.

Text from Wikipedia, “Corymbia”, CC BY-SA 4.0, quoted as written.

Family

Myrtaceae

Described by

(F.Muell.) K.D.Hill & L.A.S.Johnson

Native to

Northern Territory, Queensland, Western Australia

Wild records

866 in range· 783 open

At a glance

Warmest month

36°C

Oct, mean day; nights 23 °C (CHELSA)

Rain

1293mm/yr

7 wet months · peak Jan 317 mm (CHELSA)

Light

33–45DLI

mol/m²/day, winter to summer, open sky (CHELSA shortwave)

In short condensed by rule from the cultivation cards · not written by a person

Rain rule: a summer growing season, June to September in the northern hemisphere (December to March at the habitat, southern). Habitat rain 1293 mm a year, wettest January at 317 mm, driest August at 1 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 33 to 45 mol/m²/day. Cold floor 11.8 °C (1st-percentile habitat night, NASA POWER).

Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Cultivation

Its year Rain rule: a summer growing season, June to September in the northern hemisphere (December to March at the habitat, southern).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads a summer growing season: 70% of the year's rain (1058 mm of 1293 mm) falls in December to March, warmer than the year (wet-season mean 27.7 °C against a yearly mean of 26.6 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: June to September.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: 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 gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 1293 mm a year, wettest January at 317 mm, driest August at 1 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

1293 mm a year at the habitat, 1058 mm of it December to March. Wettest month January at 317 mm, driest August at 1 mm; 3 months under 5 mm. Across the envelope cells the year's total runs 837 mm to 1817 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, southern hemisphere).

CHELSA monthly precipitation, median year across the envelope cells. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light Open sky over the habitat: 33 to 45 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 33 to 45 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA; the lowest 10th-percentile month across the cells is 30, the highest 90th-percentile month 46).

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.

Warmth and air Cold floor 11.8 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is 11.8 °C, the absolute minimum 6.8 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 41.5 °C. Monthly means: coldest night 16.7 °C in July (across the envelope cells 13.9 °C to 21.8 °C), warmest day 35.7 °C in October (median year across the envelope cells, CHELSA). Cold floor: 11.8 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, lapse-corrected to its elevation; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 47 to 65% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

day night rain 10th–90th percentile across 512 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale

Figures by month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day °C	32 / 30–34	31 / 29–33	32 / 29–33	32 / 30–34	31 / 29–33	29 / 27–31	29 / 27–31	31 / 28–33	34 / 29–35	36 / 30–37	35 / 31–37	33 / 30–36
Night °C	25 / 23–26	24 / 23–26	24 / 22–26	22 / 21–25	20 / 18–24	18 / 15–23	17 / 14–22	18 / 15–22	21 / 18–24	23 / 21–25	25 / 23–27	25 / 24–26
Rain mm	317 / 214–403	279 / 206–395	217 / 127–310	62 / 25–146	11 / 5–33	2 / 1–10	2 / 2–5	1 / 0–4	7 / 3–20	34 / 19–67	116 / 53–160	245 / 140–323
DLI	36 / 33–40	34 / 32–37	36 / 34–38	37 / 34–38	35 / 32–35	33 / 30–34	34 / 32–35	39 / 37–39	43 / 41–44	45 / 43–46	44 / 41–46	39 / 36–43
RH %	64 / 59–67	65 / 61–68	61 / 56–66	55 / 48–62	51 / 45–58	49 / 44–57	47 / 42–56	47 / 41–57	49 / 44–60	52 / 46–60	56 / 51–62	61 / 56–65

Each figure is the median across the 512 grid cells holding the 837 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 2070:6248 (-13.525, 132.425). Over 44 years there: absolute minimum 6.8 °C, 1st-percentile night 11.8 °C, 99th-percentile day 41.5 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 512 distinct grid cells holding the 837 in-range records; extremes and elevation at the typical cell 2070:6248 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell -13.50_132.500, lapse-corrected +9 m at 6.5 °C/km. Elevation: ETOPO 2022, 202 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 every in-range record's cell, not at the marker.

Openly licensed records inside the range, framed on where they fall.

NativeNorthern Territory, Queensland, Western Australia

Kew's description“tree” · “seasonally dry tropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here

Map marker-13.519, 132.444 · in the densest population, 375 records (43% of those in range)

Evidence usedThe map marker and the climate envelope rest on all 866 georeferenced records inside the native range; the map shows only the 783 openly licensed ones, which alone would put the marker 21 km away. 12 records outside the range (gardens, roadsides, misidentifications) ignored. 29 in-range records are placed to worse than 10 km and stay on the map but off the climate.

The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population of the 866 in-range records; it decides nothing.

Photographs

Photographs: (c) Donna Belder, some rights reserved (CC BY); (c) Andrew Parker, some rights reserved (CC BY); (c) Rolf Lawrenz, some rights reserved (CC BY) (2); (c) Thomas Mesaglio, some rights reserved (CC BY) (4).

Photographs: iNaturalist and Wikimedia Commons did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Corymbia ptychocarpa, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

New species of gall flies (Diptera: Fergusoninidae) and an associated nematode (Tylenchida: Neotylenchidae) from flower bud galls on Corymbia (Myrtaceae)

Gary S. Taylor, Kerrie Davies (2008) · Australian Journal of Entomology

[Comparison of the water consumption characteristics of Eucalyptus and Corymbia clone seedlings and the local indigenous tree species Bischofia javanica].

Lei Hua, He Qian, Jiyue Li, Shan Liu (2014) · PubMed

Multiplication ofCorymbia ptychocarpasubsp.aptychavia tissue culture

Yan Yang, Ruihui Wang, Lijuan Jiang, Changzhu Li (2015) · Australian Forestry

Eco-Friendly Synthesis of Silver Nanoparticles Using Corymbia ptychocarpa Extracts: Characterization and Antibacterial Activity

ANTONY ADAIKALAM A, M. Arumugam (2024) · Nanotechnology Perceptions

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