Species
+

Eucalyptus globulus Labill.

Bluegumtree, Eucalyptus Tree, Kalitus, Módry eukalyptowc

Climate known 55 photographs
Add one to my plants Sow seed

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

Eucalyptus globulus, commonly known as southern blue gum, is a species of flowering plant in the family Myrtaceae. It is a tall, evergreen tree endemic to southeastern Australia. This Eucalyptus species has mostly smooth bark, juvenile leaves that are whitish and waxy on the lower surface, glossy green, lance-shaped adult leaves, glaucous, ribbed flower buds arranged singly or in groups of three or seven in leaf axils, white flowers and woody fruit.

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

About the genus · Eucalyptus

Eucalyptus is a genus of more than 700 species of flowering plants in the family Myrtaceae. Most species of Eucalyptus are trees, often mallees, and a few are shrubs. Along with several other genera in the tribe Eucalypteae, including Corymbia and Angophora, they are commonly known as eucalypts or "gum trees". More on Wikipedia ›

The opening of Wikipedia, “Eucalyptus”, CC BY-SA 4.0, quoted as written.

Family
Myrtaceae
Described by
Labill.
Native to
Tasmania, Victoria
Wild records
205 in range· 31 open

At a glance

Warmest month
22°C
Feb, mean day; nights 14 °C (CHELSA)
Rain
765mm/yr
12 wet months · peak Aug 78 mm (CHELSA)
Light
11–45DLI
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: no season, 70% of the rain takes 8 months (November to June in the northern hemisphere). Habitat rain 765 mm a year, wettest August at 78 mm, driest February at 46 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 11 to 45 mol/m²/day. Cold floor 2.2 °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.

Also known as Eucalyptus gigantea Denham; Eucalyptus gigantea Denham; Eucalyptus gigantea Denham; Eucalyptus gigantea Denham; Eucalyptus gigantea Denham, 1832 and 3 more.

Cultivation

Its year Rain rule: no season, 70% of the rain takes 8 months (November to June in the northern hemisphere).

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

The rain rule reads no season: 70% of the year's rain (554 mm of 765 mm) takes 8 months, May to December. Mean temperature moves 9.2 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: November to June.

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 765 mm a year, wettest August at 78 mm, driest February at 46 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

765 mm a year at the habitat, 554 mm of it May to December. Wettest month August at 78 mm, driest February at 46 mm. Across the envelope cells the year's total runs 592 mm to 1072 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: 11 to 45 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 11 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 9, the highest 90th-percentile month 48).

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 2.2 °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 2.2 °C, the absolute minimum -2.0 °C, 15 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 36.6 °C. Monthly means: coldest night 5.3 °C in July (across the envelope cells 1.5 °C to 8.7 °C), warmest day 22.0 °C in February (median year across the envelope cells, CHELSA). Cold floor: 2.2 °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: 57 to 63% 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

Habitat climate through the yearMean day from 11 °C in Jul to 22 °C in Feb; mean night from 5 °C in Jul to 14 °C in Feb. The cold quarter, Jun to Aug, is the three months around the coldest night. 765 mm of rain a year, most in Aug. The bands show the 10th to 90th percentile across 121 habitat cells. Over 44 years at the typical cell the absolute minimum was -2.0 °C and the 99th-percentile day 36.6 °C; neither is dated to a month. Beneath: daily light integral and relative humidity through the year, each on its own scale.-10°10°20°30°40°frost36.6° 99th-percentile day (undated)-2.0° lowest night in 44 yrs (undated)°C · day and nightcold quarter0255075100125150mm rainDLI 11–45RH 57–63 %JanFebMarAprMayJunJulAugSepOctNovDec
day night rain 10th–90th percentile across 121 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
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C22 / 17–2622 / 18–2620 / 17–2317 / 15–1914 / 13–1612 / 10–1311 / 9–1212 / 10–1314 / 12–1616 / 13–1818 / 14–2120 / 16–24
Night °C13 / 12–1514 / 12–1612 / 10–1510 / 7–138 / 5–116 / 3–105 / 2–96 / 2–97 / 4–98 / 6–1010 / 8–1212 / 10–14
Rain mm53 / 40–6846 / 35–5754 / 41–7158 / 42–8560 / 40–9572 / 52–11872 / 49–13478 / 52–13369 / 49–10869 / 52–9668 / 52–8466 / 53–78
DLI45 / 41–4840 / 35–4330 / 26–3421 / 17–2514 / 11–1711 / 9–1312 / 10–1518 / 15–2025 / 23–2934 / 31–3741 / 38–4444 / 41–47
RH %57 / 53–6158 / 54–6158 / 56–6159 / 58–6262 / 60–6463 / 60–6763 / 60–6861 / 59–6560 / 58–6258 / 57–6158 / 56–6158 / 54–61

Each figure is the median across the 121 grid cells holding the 193 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 2564:6518 (-38.225, 145.925). Over 44 years there: absolute minimum -2.0 °C, 1st-percentile night 2.2 °C, 99th-percentile day 36.6 °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 121 distinct grid cells holding the 193 in-range records; extremes and elevation at the typical cell 2564:6518 (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 -38.00_145.625, lapse-corrected -66 m at 6.5 °C/km. Elevation: ETOPO 2022, 137 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.
NativeTasmania, Victoria· introduced: Great Britain, Ireland, Baleares, France, Portugal, Spain, Albania, Italy, Sicilia, Morocco, Azores, Canary Is., Madeira, Rwanda, Eritrea, Ethiopia, Kenya, Tanzania, Uganda, Zimbabwe, St.Helena, Transcaucasus, East Aegean Is., China South-Central, China Southeast, Assam, Bangladesh, India, Pakistan, Cambodia, New Zealand North, New Zealand South, Easter Is., Caroline Is., Hawaii, California, Mexico Southwest, Mexico Southeast, Costa Rica, El Salvador, Guatemala, Panama, Leeward Is. AB Ant, Windward Is., Bolivia, Ecuador, Peru, Juan Fernández Is., Paraguay
Kew's description“tree” · “temperate”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Map marker-42.874, 147.297 · in the densest population, 104 records (51% of those in range)
Evidence usedThe map marker and the climate envelope rest on all 205 georeferenced records inside the native range; the map shows only the 31 openly licensed ones, which alone would put the marker 580 km away. 597 records outside the range (gardens, roadsides, misidentifications) ignored. 12 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 205 in-range records; it decides nothing.

Photographs

Eucalyptus globulusEucalyptus globulusEucalyptus globulusEucalyptus globulusEucalyptus globulusEucalyptus globulusEucalyptus globulusEucalyptus globulus

Photographs: (c) zebedeugalinha, some rights reserved (CC BY) (2); (c) Gabriel Campbell-Martinez, some rights reserved (CC BY) (6).

Photographs: iNaturalist and GBIF media 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 Eucalyptus globulus, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Isoprene and monoterpene emission rate variability: Observations with eucalyptus and emission rate algorithm development
Alex Guenther, Russell K. Monson, Ray Fall (1991) · Journal of Geophysical Research Atmospheres
Heavy Water Fractionation during Transpiration
Graham D. Farquhar, Lucas A. Cernusak, Belinda Barnes (2007) · PLANT PHYSIOLOGY
MiRNA Control of Vegetative Phase Change in Trees
Jiawei Wang, Mee Yeon Park, Ling-Jian Wang, Yeonjong Koo (2011) · PLoS Genetics
Physical, antioxidant and antimicrobial properties of chitosan films containing Eucalyptus globulus essential oil
Jawhar Hafsa, Mohamed Ali Smach, Mohamed Raâfet Ben Khedher, Bassem Charfeddine (2015) · LWT
Fungal Planet description sheets: 214–280
P.W. Crous, Roger G. Shivas, William Quaedvlieg, Michelle van der Bank (2014) · Persoonia - Molecular Phylogeny and Evolution of Fungi
Spectral Characterization of Eucalyptus Wood
Carmen‐Mihaela Popescu, Maria‐Cristina Popescu, G. Singurel, Cornelia Vasile (2007) · Applied Spectroscopy
Mild autohydrolysis: an environmentally friendly technology for xylooligosaccharide production from wood
Gil Garrote, Herminia Domı́nguez, Juan Carlos Parajó (1999) · Journal of Chemical Technology & Biotechnology

Similar habitat climate the 6 species whose habitat climate is nearest this one's: mean day and night, month by month, and rain on a log scale, in calendar order, so a habitat with the same seasons six months out is far, not near. Nothing else counts: not range, not family.

Other Eucalyptus 12 in the reference

History & registers

Where this page came from built 2026-09-20 · dossier v2 · node
gbif.species answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
gbif.synonyms answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
gbif.vernacular answeredcarried from build of 2026-09-20 (offline re-derivation; the backbone was not asked)
wcvp.distribution answered
gbif.occurrences answeredGBIF occurrence search API
climate answered
wikidata answeredcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
wikipedia answeredcarried from build of 2026-09-20; this build: skipped
inat.taxon not askedcarried from build of 2026-09-20 (rederive)
inat.photos.wild answeredcarried from build of 2026-09-20; this build: skipped
inat.photos.cultivated nothing to reportcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
commons nothing to reportcarried from build of 2026-09-20 (rederive); that build: carried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
gbif.media did not answercarried from build of 2026-09-20 (rederive); that build: api.gbif.org not asked: offline re-derivation
openalex answeredcarried from build of 2026-09-20; this build: skipped

Every upstream is recorded as having answered, reported nothing, or refused. Only “nothing to report” is ever shown as an absence. Records came from 11 datasets via GBIF.org; each carries its own licence.