Species
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Acacia saligna (Labill.) H.L.Wendl.

Golden wreath wattle, Golden wreath wattle, Orange wattle, Blue-leafed wattle, Western Australian golden wattle, Orange wattle, Port Jackson

Climate known 79 photographs
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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

Acacia saligna, commonly known by various names including coojong, golden wreath wattle, willow wattle, orange wattle, blue-leafed wattle, Western Australian golden wattle, and, in Africa, Port Jackson willow, is a small tree in the family Fabaceae. Native to Australia, it is widely distributed throughout the south west corner of Western Australia, extending north as far as the Murchison River, and east to Israelite Bay. The Noongar peoples know the tree as Cujong.

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

About the genus · Acacia

Acacia, commonly known as wattles or acacias, is a genus of about 1,084 species of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Australasia, but is now reserved for species mainly from Australia, with others from New Guinea, Southeast Asia, and the Indian Ocean.

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

Family
Fabaceae
Described by
(Labill.) H.L.Wendl.
Native to
Western Australia
Wild records
169 in range· 143 open

At a glance

Warmest month
30°C
Feb, mean day; nights 18 °C (CHELSA)
Rain
633mm/yr
8 wet months · peak Jul 118 mm (CHELSA)
Light
16–53DLI
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 winter growing season, November to March in the northern hemisphere (May to September at the habitat, southern). Habitat rain 633 mm a year, wettest July at 118 mm, driest December at 11 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 16 to 53 mol/m²/day. Cold floor 3.2 °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 Acacia bracteata Maiden & Blakely; Acacia cyanophylla Lindl.; Acacia cyanophylla var. cyanophylla; Acacia lindleyi Meisn.; Mimosa saligna Labill. and 1 more.

Cultivation

Its year Rain rule: a winter growing season, November to March in the northern hemisphere (May to September at the habitat, southern).

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

The rain rule reads a winter growing season: 70% of the year's rain (475 mm of 633 mm) falls in May to September, cooler than the year (wet-season mean 13.5 °C against a yearly mean of 17.7 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: November to March.

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 633 mm a year, wettest July at 118 mm, driest December at 11 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

633 mm a year at the habitat, 475 mm of it May to September. Wettest month July at 118 mm, driest December at 11 mm. Across the envelope cells the year's total runs 380 mm to 860 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: 16 to 53 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 16 to 53 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 14, the highest 90th-percentile month 54).

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 3.2 °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 3.2 °C, the absolute minimum -0.2 °C, 1 frost night in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 44.1 °C. Monthly means: coldest night 7.7 °C in July (across the envelope cells 5.8 °C to 11.0 °C), warmest day 29.5 °C in February (median year across the envelope cells, CHELSA). Cold floor: 3.2 °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: 51 to 59% 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 16 °C in Jul to 30 °C in Feb; mean night from 8 °C in Jul to 18 °C in Feb. The cold quarter, Jun to Aug, is the three months around the coldest night. 633 mm of rain a year, most in Jul. The bands show the 10th to 90th percentile across 140 habitat cells. Over 44 years at the typical cell the absolute minimum was -0.2 °C and the 99th-percentile day 44.1 °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°50°frost44.1° 99th-percentile day (undated)-0.2° lowest night in 44 yrs (undated)°C · day and nightcold quarter050100150200mm rainDLI 16–53RH 51–59 %JanFebMarAprMayJunJulAugSepOctNovDec
day night rain 10th–90th percentile across 140 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 °C29 / 26–3430 / 26–3427 / 24–3124 / 21–2720 / 18–2317 / 15–1916 / 14–1816 / 14–1818 / 16–2121 / 18–2424 / 21–2827 / 23–31
Night °C18 / 14–2018 / 14–2116 / 13–1914 / 11–1612 / 9–149 / 7–128 / 6–118 / 6–119 / 7–1211 / 8–1314 / 11–1616 / 12–18
Rain mm15 / 9–2514 / 12–2122 / 18–3434 / 21–4585 / 49–116113 / 53–168118 / 57–17196 / 50–13763 / 31–9736 / 16–5026 / 14–3911 / 8–23
DLI53 / 47–5347 / 41–4739 / 33–4028 / 24–3020 / 17–2316 / 14–1917 / 15–1922 / 19–2530 / 26–3441 / 34–4448 / 42–5053 / 47–54
RH %51 / 47–5752 / 48–5752 / 49–5854 / 52–5956 / 55–6058 / 56–6259 / 56–6258 / 56–6258 / 56–6156 / 52–5954 / 49–5852 / 48–57

Each figure is the median across the 140 grid cells holding the 159 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 2384:5909 (-29.225, 115.475). Over 44 years there: absolute minimum -0.2 °C, 1st-percentile night 3.2 °C, 99th-percentile day 44.1 °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 140 distinct grid cells holding the 159 in-range records; extremes and elevation at the typical cell 2384:5909 (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 -29.00_115.625, lapse-corrected -48 m at 6.5 °C/km. Elevation: ETOPO 2022, 222 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.
NativeWestern Australia· introduced: Baleares, Corse, France, Portugal, Sardegna, Spain, Albania, Greece, Italy, Kriti, Sicilia, Algeria, Libya, Morocco, Tunisia, Canary Is., Madeira, Zaïre, Eritrea, Ethiopia, Somalia, Kenya, Tanzania, Angola, Mozambique, Zambia, Cape Provinces, Namibia, Cyprus, East Aegean Is., Iraq, Lebanon-Syria, Palestine, Turkey, Saudi Arabia, Yemen, India, New South Wales, Queensland, South Australia, Victoria, California, Nevada, Florida, Argentina Northeast
Kew's description“shrub or tree” · “subtropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Map marker-32.157, 115.953 · in the densest population, 95 records (56% of those in range)
Evidence usedThe map marker and the climate envelope rest on all 169 georeferenced records inside the native range; the map shows only the 143 openly licensed ones, which alone would put the marker 21 km away. 964 records outside the range (gardens, roadsides, misidentifications) ignored. 10 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 169 in-range records; it decides nothing.

Photographs

Acacia salignaAcacia salignaAcacia salignaAcacia salignaAcacia salignaAcacia salignaAcacia salignaAcacia saligna

Photographs: no rights reserved · CC0 (3); (c) Dave Richardson, some rights reserved (CC BY) (2); (c) Crap Fou, some rights reserved (CC BY); (c) zebedeugalinha, some rights reserved (CC BY) (2).

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 Acacia saligna, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Biomass allocation to leaves, stems and roots: meta‐analyses of interspecific variation and environmental control
Hendrik Poorter, Karl J. Niklas, Peter B. Reich, Jacek Oleksyn (2011) · New Phytologist
Effects of Invasive Alien Plants on Fire Regimes
Matthew L. Brooks, Carla M. D’Antonio, David M. Richardson, James B. Grace (2004) · BioScience
Invasive Species, Environmental Change and Management, and Health
Petr Pyšek, David M. Richardson (2010) · Annual Review of Environment and Resources
Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol
Julie Major, Marco Antonio Rondón, Diego Molina, Susan J. Riha (2010) · Plant and Soil
Trees and shrubs as invasive alien species – a global review
David M. Richardson, Marcel Rejmánek (2011) · Diversity and Distributions
Biochar to improve soil fertility. A review
Yang Ding, Yunguo Liu, Shaobo Liu, Zhongwu Li (2016) · Agronomy for Sustainable Development
Reducing the Risks of Herbicide Resistance: Best Management Practices and Recommendations
Jason K. Norsworthy, Sarah Ward, David Shaw, Rick Llewellyn (2012) · Weed Science
Water-Use Efficiency: Advances and Challenges in a Changing Climate
Jerry L. Hatfield, Christian Dold (2019) · Frontiers in Plant Science
Soil biota and invasive plants
Kurt O. Reinhart, Ragan M. Callaway (2006) · New Phytologist
The amazing potential of fungi: 50 ways we can exploit fungi industrially
Kevin D. Hyde, Jianchu Xu, Sylvie Rapior, Rajesh Jeewon (2019) · Fungal Diversity
New Insights on Plant Salt Tolerance Mechanisms and Their Potential Use for Breeding
Moez Hanin, Chantal Ebel, Mariama Ngom, Laurent Laplaze (2016) · Frontiers in Plant Science
Plants and climate change: complexities and surprises
Camille Parmesan, Mick E. Hanley (2015) · Annals of Botany

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 Acacia 10 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 download https://doi.org/10.15468/dl.3h4zam
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 not askedcarried 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 answered
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 61 datasets via GBIF.org; each carries its own licence.