Brachychiton gregorii

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Family Malvaceae

Taxonomy: Brachychiton gregorii F.Muell.

Synonyms: 6 (APC 2026-07-30)

Brachychiton acerifolius var. gregorii (F.Muell.) A.Terracc. (nomenclatural synonym)
Brachychiton populneum var. occidentalis G.Goeze (nomenclatural synonym)
Brachychiton populneus var. occidentalis (Benth.) G.Goeze (nomenclatural synonym)
Clompanus gregorii (F.Muell.) Kuntze (nomenclatural synonym)
Sterculia diversifolia var. occidentalis Benth. (nomenclatural synonym)
Sterculia gregorii (F.Muell.) W.Fitzg. (nomenclatural synonym)

Distribution (APC): WA, NT, SA

Profiles: APC, Flora of Australia, ALA, iNaturalist, NT eFlora, SA eFlora, Florabase, ATRP

Traits

Top source datasets: ANBG_2019 (2), Burrows_2008_2 (2), Burrows_2020 (2), Crowley_2007 (2), Draper_2023 (3), Ilic_2000 (1), Kew_2019_1 (1), Kew_2019_6 (2), NTH_2022 (3), NTH_2023 (25), Nano_2011 (3), Pate_1998 (6), RussellSmith_2012 (4), SAH_2022 (4), SAH_2023 (13), Shedley_2007 (2), Sjostrom_2006 (4), Sweedman_2006 (3), WAH_1998 (1), WAH_2022_2 (3), WAH_2023_2 (2), Wenk_2022 (2), Wenk_2023 (1), Wright_2000 (1), eFLOWER_Dun_2022 (29). See below for a full list of sources.
Summary: AusTraits contains 67 traits from 121 records in 25 datasets.

Traits by category (click to expand). For categorical traits, the values are listed. For numerical traits, the mean and range are shown.

fire response

resprouting_capacity (categorical): resprouts (3) [sources: Crowley_2007; Nano_2011; RussellSmith_2012]
fire_time_from_fire_to_flowering (numerical): 96 mo (96-96 mo) [sources: Burrows_2020]

flower morphology

flower_colour (categorical): green (1); white_cream (1); yellow_orange (1) [sources: eFLOWER_Dun_2022]
sex_type (categorical): monoecious (1) [sources: Sjostrom_2006]

fruit morphology

fruit_length (numerical): 35 mm (20-50 mm) [sources: SAH_2023]
fruit_type (categorical): follicle (3) [sources: NTH_2023; SAH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2) [sources: NTH_2023; Sjostrom_2006]
fruit_colour (categorical): black (1); brown (1) [sources: NTH_2023; SAH_2023]

leaf morphology

leaf_length (numerical): 143.75 mm (75-210 mm) [sources: NTH_2023; SAH_2023]
leaf_width (numerical): 160 mm (90-230 mm) [sources: NTH_2023]
petiole_length (numerical): 7.75 cm (3.5-14 cm) [sources: NTH_2023; SAH_2023]
leaf_shape (categorical): lanceolate (1); linear (1); ovate (1) [sources: NTH_2023; SAH_2023]
leaf_base_shape (categorical): attenuate (1); cordate (1) [sources: NTH_2023]
leaf_lobation (categorical): lobed (2); unlobed (1) [sources: NTH_2023; SAH_2023]
leaf_compoundness (categorical): simple (1) [sources: NTH_2023]
leaf_phyllotaxis (categorical): alternate (1) [sources: NTH_2023]
plant_photosynthetic_organ (categorical): leaf (2) [sources: NTH_2023; SAH_2023]

life history

photosynthetic_pathway (categorical): c3 (1) [sources: Pate_1998]
plant_growth_form (categorical): mallee (1); tree (5) [sources: NTH_2022; Pate_1998; SAH_2022; Shedley_2007; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (7) [sources: Burrows_2008_2; Burrows_2020; NTH_2022; Pate_1998; SAH_2022; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): woody (4) [sources: NTH_2022; SAH_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): erect (1) [sources: SAH_2022]
nitrogen_fixing (categorical): non_nitrogen_fixer (1) [sources: Pate_1998]
pollination_syndrome (categorical): bird (1); insect (1) [sources: Draper_2023]
dispersal_syndrome (categorical): barochory (1); endozoochory (1) [sources: Draper_2023]
dispersers (categorical): passive (1); vertebrates (1) [sources: Draper_2023]
flowering_time (categorical): ynnnnnnnnnyy (1) [sources: WAH_1998]
seedbank_longevity_class (categorical): persistent (1) [sources: RussellSmith_2012]
bud_bank_location (categorical): epicormic_buds (3) [sources: Crowley_2007; Nano_2011]

nutrient and stable isotope

leaf_delta13C (numerical): -24.94 {delta}[ppth] (-24.94--24.94 {delta}[ppth]) [sources: Pate_1998]

seed morphology

seed_dry_mass (numerical): 32.05 mg (14.15-49.95 mg) [sources: ANBG_2019; Kew_2019_1]
seed_length (numerical): 6.75 mm (6.5-7 mm) [sources: NTH_2023]
seed_width (numerical): 4 mm (3.5-4.5 mm) [sources: NTH_2023]
seed_shape (categorical): ovoid (1) [sources: NTH_2023]

stem morphology

wood_density (numerical): 0.6 mg/mm3 (0.6-0.6 mg/mm3) [sources: Ilic_2000]

whole plant morphology

plant_height (numerical): 9.83 m (3-12 m) [sources: NTH_2023; SAH_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
eFLOWER_Dun_2022	21	29	L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
NTH_2023	19	25	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.gov.au/.
SAH_2023	10	13	S. H. of South Australia. eFlora of SA, Electronic Flora of South Australia. accessed on 6 May, 2022.. 2022. url: http://www.flora.sa.gov.au/.
Pate_1998	6	6	J. S. Pate, M. J. Unkovich, P. D. Erskine, and G. R. Stewart. “Australian mulga ecosystems- 13C and 15N natural abundances of biota components and their ecophysiological significance”. Plant, Cell and Environment 21.12 (1998), pp. 1231-1242. doi: 10.1046/j.1365-3040.1998.00359.x.
RussellSmith_2012	4	4	J. Russell-Smith, M. R. Gardener, C. Brock, K. Brennan, C. P. Yates, and B. Grace. “Fire persistence traits can be used to predict vegetation response to changing fire regimes at expansive landscape scales - an Australian example”. Journal of Biogeography 39 (2012), pp. 1657-1668. doi: 10.1111/j.1365-2699.2012.02714.x.
SAH_2022	4	4	S. H. of South Australia. eFlora of SA, Electronic Flora of South Australia. accessed on 6 May, 2022.. 2022. url: http://www.flora.sa.gov.au/.
Sjostrom_2006	4	4	A. Sjöström and C. L. Gross. “Life-history characters and phylogeny are correlated with extinction risk in the Australian angiosperms”. Journal of Biogeography 33.2 (2006), pp. 271-290. doi: 10.1111/j.1365-2699.2005.01393.x.
Draper_2023	3	3	J. T. Draper, S. Delean, J. G. Conran, P. Weinstein, and B. S. Simpson. “Life-history characteristics and climate correlates of dioecious plant species in central southern Australia”. Australian Journal of Botany unknown.unknown (2023), p. unknown. doi: 10.1071/BT22110.
NTH_2022	3	3	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.gov.au/.
Nano_2011	2	3	C. E. M. Nano and P. J. Clarke. “How do drought and fire influence the patterns of resprouting in Australian deserts?”. Plant Ecology 212 (2011), pp. 2095-2110. doi: 10.1007/s11258-011-9988-x.
Sweedman_2006	1	3	L. Sweedman and D. Merritt. Australian Seeds: A Guide to Their Collection, Identification, and Biology. CSIRO Publishing, 2006. ISBN: 9780643094079.
WAH_2022_2	3	3	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2022. url: https://florabase.dpaw.wa.gov.au/.
ANBG_2019	2	2	Australian National Botanic Gardens. The National Seed Bank. 2018. url: http://www.anbg.gov.au/gardens/living/seedbank/.
Burrows_2008_2	2	2	N. D. Burrows, G. Wardell-Johnson, and B. Ward. “Post-fire juvenile period of plants in south-west Australia forests and implications for fire management”. Journal of the Royal Society of Western Australia 91 (2008), pp. 163-174. ISSN: 0035922X. url: http://hdl.handle.net/20.500.11937/19156 (visited on 03/27/2025).
Burrows_2020	2	2	N. Burrows. Data from 'Plant Ecological Attributes' theme, NatureMap, DBCA, WA. 2020.
Crowley_2007	2	2	G. Crowley, M. Gardener, and M. Marrinan. Tropical savannas fire response database. 2007. url: [www.landmanager.org.au](www.landmanager.org.au).
Kew_2019_6	1	2	Royal Botanic Gardens Kew. Germination data from the Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Shedley_2007	2	2	E. F. Shedley. Fire and Biodiversity Guidelines for the Avon Basin: Consultant Report to the Avon Catchment Council and the Department of Environment and Conservation, August 2007. Tech. rep. Department of Environment and Conservation, Western Australia, 2007.
WAH_2023_2	1	2	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. url: https://florabase.dpaw.wa.gov.au/.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Ilic_2000	1	1	J. Ilic, D. Boland, M. McDonald, D. G, and P. Blakemore. Woody density phase 1 - State of knowledge. National Carbon Accounting System. Technical Report 18. Tech. rep. Australian Greenhouse Office, Canberra, Australia, 2000.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
WAH_1998	1	1	Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://florabase.dpaw.wa.gov.au.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.
Wright_2000	1	1	I. J. Wright, H. T. Clifford, R. Kidson, M. L. Reed, B. L. Rice, and M. Westoby. “A survey of seed and seedling characters in 1744 Australian dicotyledon species: Cross-species trait correlations and correlated trait-shifts within evolutionary lineages”. Biological Journal of the Linnean Society 69 (2000), pp. 521-547. doi: 10.1111/j.1095-8312.2000.tb01222.x.