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Leptospermum morrisonii; photograph (c) Bryce Watts-Parker, some rights reserved (CC BY) CC BY(c) Bryce Watts-Parker, some rights reserved (CC BY) · observed growing wild · 2024-06-09

Leptospermum morrisonii Joy Thomps.

Large-leaf yellow teatree

Myrtaceae · New South Wales

Cited as Kew's World Checklist cites it, Leptospermum morrisonii Joy Thomps.: GBIF's backbone key for this page carries the name with another author, J.Thomps.

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Leptospermum morrisonii, photograph (c) Guy Taseski, some rights reserved (CC BY)Leptospermum morrisonii, photograph (c) Guy Taseski, some rights reserved (CC BY)Leptospermum morrisonii, photograph (c) Guy Taseski, some rights reserved (CC BY)Leptospermum morrisonii, photograph (c) Guy Taseski, some rights reserved (CC BY)Leptospermum morrisonii, photograph (c) Guy Taseski, some rights reserved (CC BY)Leptospermum morrisonii, photograph author not stated, no rights reserved 24 photographs ›
Habitat figures
Cold floor (1 night in 100)
3.1°C
Record low 0.7 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
25°C
Jan at the habitat CHELSA
Rain a year (median across the range)
954mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
16–42DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Leptospermum morrisonii is a shrub or small tree that is endemic to New South Wales. It has strongly aromatic, elliptical to lance-shaped or curved leaves, white or greenish white flowers and fruit that remain on the plant. It occurs in the south-east of the state.

Quoted from Wikipedia, "Leptospermum morrisonii", CC BY-SA 4.0.

About the genus · Leptospermum

Leptospermum is a genus of shrubs and small trees in the myrtle family Myrtaceae commonly known as tea trees, although this name is sometimes also used for some species of Melaleuca. Most species are endemic to Australia, with the greatest diversity in the south of the continent, but some are native to other parts of the world, including New Zealand and Southeast Asia. Leptospermums all have five conspicuous petals and five groups of stamens which alternate with the petals. More on Wikipedia ›

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

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (707 mm of 965 mm) takes 8 months, October to April and June. Mean temperature moves 11.9 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: April to October and December.

Rain

965 mm in the median year at the habitat, 707 mm of it October to April and June. Wettest month February at 118 mm, driest month September at 58 mm. Across the grid cells of the range the year's total runs 810 mm to 1,223 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 954 mm, is the year's rain at the top of the page; the 965 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: 16 to 42 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 15, the highest 90th-percentile month 44).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 3.1 °C, the absolute minimum 0.7 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 31.8 °C. Monthly means: the coldest month's mean nightly low 4.5 °C in July (across the grid cells of the range 1.6 °C to 8.4 °C), the warmest month's mean daily high 24.7 °C in January (median year across the grid cells of the range, CHELSA). Cold floor: 3.1 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 57 to 62% 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 +431 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.

Climate across the habitat

Habitat months, southern hemisphere

Habitat climate of Leptospermum morrisonii through the yearWarmest month January, mean daily high 25 °C; coldest month July, mean nightly low 4.5 °C; 965 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, southern hemisphere.-10°0°10°20°30°40°frost31.8° 99th-percentile day, NASA POWER0.7° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0255075100125150mm rainDLI 16–42RH 57–62%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 219 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C25 / 23–2724 / 22–2622 / 20–2419 / 17–2116 / 13–1813 / 10–1612 / 10–1514 / 11–1717 / 15–1919 / 18–2221 / 20–2323 / 22–25
Night °C15 / 13–1915 / 13–1913 / 11–1711 / 8–158 / 5–126 / 3–105 / 2–85 / 2–97 / 5–119 / 7–1311 / 9–1514 / 11–17
Rain mm84 / 71–106118 / 92–14684 / 62–10986 / 59–11772 / 54–11278 / 58–11463 / 51–9665 / 50–7858 / 50–7778 / 66–9493 / 79–11086 / 76–100
DLI41 / 40–4235 / 34–3730 / 29–3124 / 23–2518 / 17–1916 / 15–1617 / 17–1823 / 23–2431 / 30–3237 / 36–3840 / 39–4142 / 41–44
RH %60 / 58–6362 / 60–6462 / 59–6361 / 59–6361 / 59–6361 / 58–6460 / 57–6258 / 55–6057 / 55–5857 / 55–5859 / 57–6159 / 57–62
How this section is made
Each figure is the median across the 219 grid cells on land that hold in-range records (419 records in those cells; 2 more cells hold records but no land by the elevation layer, so those records sit at sea and the cells are left out), 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 2503:6606 (-35.175, 150.325). Over 44 years there: absolute minimum 0.7 °C, 1st-percentile night 3.1 °C, 99th-percentile day 31.8 °C. 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 219 distinct grid cells holding 419 of the 421 in-range records (2 further cells with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 2503:6606 (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 -35.00_150.625, lapse-corrected +431 m at 6.5 °C/km. Elevation: ETOPO 2022, 550 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.
NativeNew South Wales · 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-34.456, 150.533 · in the densest population, 432 records (95% of those in range)
Kew's description“shrub or tree” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 457 georeferenced records inside the native range; the climate across the range on the 419 of them in the land cells it reads, of 421 placed to within 10 km; the map shows only the 448 openly licensed ones, which alone would put the marker 1 km away. 12 records outside the WCVP native range not used. 36 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.
Other GBIF keysRecords also from GBIF's key 11297560 (Leptospermum morrisonii JoyThomps.): Kew's file holds it as Leptospermum morrisonii Joy Thomps. (accepted); 0 records, from GBIF's search API on the day of the build.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 457 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Leptospermum morrisonii, photograph 1did not loadLeptospermum morrisonii, photograph 2did not loadLeptospermum morrisonii, photograph 3did not loadLeptospermum morrisonii, photograph 4did not loadLeptospermum morrisonii, photograph 5did not loadLeptospermum morrisonii, photograph 6did not load

Photographs: (c) Guy Taseski, some rights reserved (CC BY) (5); author not stated, no rights reserved · CC0.

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

Leucopogon affinis Leucopogon affinis Ericaceae Photo: CC BY-SA, Geoff DerrinAcacia obtusifolia Acacia obtusifolia Blunt-leaf Wattle Photo: CC BY, Caleb CattoEpacris microphylla Epacris microphylla Coral Heath Photo: CC BY, ian_mcallan Erioseira myoporoides Rutaceae Dendrobium striolatum Dendrobium striolatum Streaked Rock Orchid Photo: CC BY, Kiri BeeMelaleuca subulata Melaleuca subulata Myrtaceae Photo: CC BY-SA, Eric in SF

Other Leptospermum 21 in the reference

Leptospermum continentale Leptospermum continentale Prickly tea-tree Photo: CC BY-SA, Greg TasneyLeptospermum grandiflorum Leptospermum grandiflorum Myrtaceae Photo: CC BY, Stella FishLeptospermum grandifolium Leptospermum grandifolium Tea Tree Bairne Photo: CC BY, Petra HollandLeptospermum juniperinum Leptospermum juniperinum Prickly teatree Photo: CC BY, Bryce Watts-ParkerLeptospermum laevigatum Leptospermum laevigatum Australian teatree Photo: CC BY-SA, Jack KlemLeptospermum lanigerum Leptospermum lanigerum Woolly Tea-tree Photo: CC BY, Stella FishLeptospermum liversidgei Leptospermum liversidgei Lemon-scented Tea-tree Photo: CC0, author not statedLeptospermum macrocarpum Leptospermum macrocarpum Large-fruited tea tree Photo: CC BY, T. HammerLeptospermum myrtifolium Leptospermum myrtifolium Myrtle Teatree Photo: CC BY-SA, Tony EalesLeptospermum nitidum Leptospermum nitidum Shining Tea-tree Photo: CC0, author not statedLeptospermum obovatum Leptospermum obovatum River teatree Photo: CC BY, Shelomi DoyleLeptospermum petersonii Leptospermum petersonii Common teatree Photo: CC BY-SA, Greg Tasney all 22 ›

Names & registers

Also known as Leptospermum virgatum. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Myrtaceae
Described by
Joy Thomps.
Native to
New South Wales
Wild records
457 in range · 448 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 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22GBIF's key 3181893 is Leptospermum morrisonii J.Thomps.; the page links Kew's Leptospermum morrisonii Joy Thomps., and the name is cited as Kew cites it
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredasked 2026-10-22GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 0 records of GBIF's key 11297560, Leptospermum morrisonii JoyThomps. (Kew's file holds it as Leptospermum morrisonii Joy Thomps. (accepted)): GBIF occurrence search API; 14 records within 1 km of a botanic garden, herbarium or zoo left out (4 at a botanic garden or arboretum, 9 at a herbarium, 1 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -35.00_150.625, lapse-corrected +431 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.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 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
Wikimedia Commons commons answeredasked 2026-10-22
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 20 datasets via GBIF.org; each carries its own licence.

Cultifolio

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