Acacia williamsonii

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Family Fabaceae

Taxonomy: Acacia williamsonii Court

Synonyms: 3 (APC 2026-07-30)

Acacia hakeoides var. angustifolia (H.B.Will.) J.H.Willis (nomenclatural synonym)
Acacia ligulata var. angustifolia H.B.Will. (nomenclatural synonym)
Racosperma williamsonii (Court) Pedley (nomenclatural synonym)

Distribution (APC): NSW (native and naturalised), Vic

Profiles: APC, Flora of Australia, ALA, iNaturalist, NSW Flora, Vic Flora, ATRP

Traits

Top source datasets: ABRS_2022 (4), ABRS_2023 (18), Cheal_2017 (2), Chen_2017 (4), Kew_2019_1 (1), Maslin_2012 (12), McGlone_2015 (6), NHNSW_2022 (4), NHNSW_2023 (13), RBGV_2022 (4), RBGV_2023 (18), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1), White_2020 (20). See below for a full list of sources.
Summary: AusTraits contains 46 traits from 113 records in 15 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): fire_killed (1); resprouts (1) [sources: Cheal_2017; White_2020]

flower morphology

sex_type (categorical): andromonoecious (1) [sources: Sjostrom_2006]

fruit morphology

fruit_length (numerical): 85 mm (60-90 mm) [sources: ABRS_2023; NHNSW_2023; RBGV_2023]
fruit_width (numerical): 3.25 mm (3-3.5 mm) [sources: ABRS_2023; NHNSW_2023; RBGV_2023]
fruit_type (categorical): legume (5) [sources: ABRS_2023; Chen_2017; NHNSW_2023; RBGV_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (2) [sources: Chen_2017; Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2) [sources: Chen_2017; Sjostrom_2006]
fruit_colour (categorical): black (2) [sources: ABRS_2023; RBGV_2023]

leaf morphology

leaf_length (numerical): 66.5 mm (30-90 mm) [sources: McGlone_2015; ABRS_2023; Maslin_2012; NHNSW_2023; RBGV_2023]
leaf_width (numerical): 2.4 mm (1.5-3 mm) [sources: McGlone_2015; ABRS_2023; Maslin_2012; NHNSW_2023; RBGV_2023]
leaf_shape (categorical): linear (1); narrowly_oblanceolate (1); strap-shaped (2) [sources: ABRS_2023; NHNSW_2023; RBGV_2023]
leaf_base_shape (categorical): attenuate (2) [sources: ABRS_2023; RBGV_2023]
leaf_compoundness (categorical): simple (2) [sources: Maslin_2012; McGlone_2015]
leaf_glaucousness (categorical): glaucous (3); not_glaucous (1) [sources: ABRS_2023; NHNSW_2023; RBGV_2023]
plant_photosynthetic_organ (categorical): leaf (1); phyllode (3) [sources: ABRS_2023; Maslin_2012; NHNSW_2023; RBGV_2023]

life history

photosynthetic_pathway (categorical): c3 (1) [sources: White_2020]
plant_growth_form (categorical): shrub (7); tree (1) [sources: ABRS_2022; Maslin_2012; McGlone_2015; NHNSW_2022; RBGV_2022; Wenk_2022; White_2020]
life_history (categorical): perennial (5) [sources: ABRS_2022; Maslin_2012; NHNSW_2022; RBGV_2022; Wenk_2023]
woodiness_detailed (categorical): woody (4) [sources: ABRS_2022; NHNSW_2022; RBGV_2022; Wenk_2022]
stem_growth_habit (categorical): bushy (3) [sources: ABRS_2022; NHNSW_2022; RBGV_2022]
leaf_phenology (categorical): evergreen (1) [sources: Maslin_2012]
nitrogen_fixing (categorical): nitrogen_fixer (1) [sources: White_2020]
parasitic (categorical): not_parasitic (1) [sources: White_2020]
pollination_syndrome (categorical): insect (1) [sources: White_2020]
dispersal_syndrome (categorical): zoochory (1) [sources: White_2020]
dispersers (categorical): invertebrates (1) [sources: White_2020]
flowering_time (categorical): nnnnnnnyynnn (1) [sources: White_2020]
seedbank_longevity_class (categorical): persistent (1) [sources: White_2020]
vegetative_reproduction_ability (categorical): vegetative (1) [sources: White_2020]

seed morphology

seed_dry_mass (numerical): 8.64 mg (8.64-8.64 mg) [sources: Kew_2019_1]
seed_length (numerical): 3.83 mm (3.5-4 mm) [sources: ABRS_2023; Maslin_2012; RBGV_2023]
seed_shape (categorical): ellipsoid (3); ovoid_elongated (2) [sources: ABRS_2023; Maslin_2012; RBGV_2023]

whole plant morphology

plant_height (numerical): 2 m (2-2 m) [sources: ABRS_2023; Maslin_2012; McGlone_2015; NHNSW_2023; RBGV_2023]
plant_physical_defence_structures (categorical): absent (1) [sources: White_2020]

Sources

dataset_id	n_traits	n_records	reference
White_2020	20	20	M. White, S. Sinclair, and D. Frood. Victorian Vital Attributes Database. database. Department of Environment, Land, Water and Planning, Victoria, 2020.
ABRS_2023	14	18	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
RBGV_2023	14	18	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.gov.au/.
NHNSW_2023	9	13	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2023. url: https://plantnet.rbgsyd.nsw.gov.au/.
Maslin_2012	10	12	B. Maslin. WATTLE, Interactive Identification of Australian Acacia. Version 2. Australian Biological Resources Study, Canberra, 2014.
McGlone_2015	6	6	M. S. McGlone, S. J. Richardson, G. J. Jordan, and G. L. Perry. “Is there a `suboptimal' woody species height? A response to Scheffer et al.”. Trends in Ecology & Evolution 30.1 (2015), pp. 4-5. doi: 10.1016/j.tree.2014.09.007.
ABRS_2022	4	4	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2022. url: http://www.ausflora.org.au.
Chen_2017	4	4	Chen, S.-C., Cornwell, W., Z. H.-X., Moles, and A. T. “Plants show more flesh in the tropics: Variation in fruit type along latitudinal and climatic gradients.”. Ecography 40 (2017), pp. 531-538. doi: abs/10.1111/ecog.02010.
NHNSW_2022	4	4	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2022. url: https://plantnet.rbgsyd.nsw.gov.au/.
RBGV_2022	4	4	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2022. url: https://vicflora.rbg.vic.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.
Cheal_2017	2	2	D. Cheal. Growth stages and tolerable fire intervals for Victoria's native vegetation data sets. Fire and adaptive management, report no. 84. Victorian Government Department of Sustainability and Environment Melbourne, 2010.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.