Hakea obliqua

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Family Proteaceae

Taxonomy: Hakea obliqua R.Br.

Synonyms: none listed in the APC 2026-07-30

Distribution (APC): WA

Profiles: APC, Flora of Australia, ALA, iNaturalist, Florabase, ATRP

Traits

Top source datasets: ABRS_1981 (2), ABRS_2022 (4), ABRS_2023 (17), Barrett_2009 (14), Burrows_2008_2 (5), Burrows_2020 (5), Chen_2017 (4), Collette_2021 (1), Groom_2010 (2), Hanley_2002 (7), Jordan_2020 (3), Milberg_1998 (4), Pate_1990 (4), Sjostrom_2006 (4), Sweedman_2006 (4), WAH_1998 (1), WAH_2022_2 (4), WAH_2023_2 (2), Wenk_2022 (2), Wenk_2023 (1), vanderMoezel_1987 (5). See below for a full list of sources.
Summary: AusTraits contains 46 traits from 95 records in 21 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 (8) [sources: Barrett_2009; Burrows_2008_2; Burrows_2020; Groom_2010; Pate_1990; vanderMoezel_1987]
post_fire_recruitment (categorical): post_fire_recruitment (5) [sources: Barrett_2009; Pate_1990; vanderMoezel_1987]
fire_time_from_fire_to_flowering (numerical): 48 mo (48-48 mo) [sources: Burrows_2020]

flower morphology

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

fruit morphology

fruit_length (numerical): 18 mm (1-45 mm) [sources: ABRS_2023]
fruit_width (numerical): 26.5 mm (13-40 mm) [sources: ABRS_2023]
fruit_type (categorical): follicle (2) [sources: Chen_2017; Sjostrom_2006]
fruit_fleshiness (categorical): dry (2) [sources: Chen_2017; Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2) [sources: Chen_2017; Sjostrom_2006]

leaf morphology

leaf_length (numerical): 40 mm (10-70 mm) [sources: ABRS_2023]
leaf_width (numerical): 1.8 mm (1.1-2.5 mm) [sources: ABRS_2023]
leaf_mass_per_area (numerical): 367.65 g/m2 (367.65-367.65 g/m2) [sources: Hanley_2002]
leaf_type (categorical): needle (1) [sources: Hanley_2002]
leaf_shape (categorical): terete (1) [sources: ABRS_2023]
leaf_compoundness (categorical): simple (1) [sources: ABRS_1981]
plant_photosynthetic_organ (categorical): leaf (1) [sources: ABRS_2023]

life history

plant_growth_form (categorical): shrub (6) [sources: ABRS_2022; Barrett_2009; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (6) [sources: ABRS_2022; Burrows_2008_2; Burrows_2020; Jordan_2020; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): woody (3) [sources: ABRS_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): dense (1); erect (2) [sources: ABRS_2022; WAH_2022_2]
leaf_phenology (categorical): evergreen (1) [sources: ABRS_1981]
reproductive_maturity (numerical): 4 a (4-4 a) [sources: Burrows_2020]
flowering_time (categorical): nnnnnnnnnynn (1); nnnnyyyyyynn (1) [sources: WAH_1998; vanderMoezel_1987]
seedbank_location (categorical): canopy_seedbank (5) [sources: Barrett_2009; Burrows_2008_2; Burrows_2020]
serotiny (categorical): serotiny_high (1) [sources: Groom_2010]
seed_dormancy_class (categorical): non_dormant (1) [sources: Collette_2021]
bud_bank_location (categorical): none (1) [sources: Burrows_2008_2]

nutrient and stable isotope

leaf_N_per_dry_mass (numerical): 5.5 mg/g (5.5-5.5 mg/g) [sources: Hanley_2002]

seed morphology

seed_dry_mass (numerical): 26.75 mg (26-27.5 mg) [sources: Hanley_2002; Milberg_1998]
seed_length (numerical): 25.5 mm (23-28 mm) [sources: ABRS_2023]
seed_shape (categorical): winged (1) [sources: ABRS_2023]

whole plant morphology

plant_height (numerical): 1.62 m (0.5-3 m) [sources: ABRS_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
ABRS_2023	9	17	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
Barrett_2009	6	14	S. Barrett, S. Comer, N. McQuoid, M. Porter, C. Tiller, and D. Utber. Identification and Conservation of Fire Sensitive Ecosystems and Species of the South Coast Natural Resource Management Region.. government. Department of Conservation and Land Management, South Coast Region, Western Australia, 2009.
Hanley_2002	7	7	M. E. Hanley and B. B. Lamont. “Relationships between physical and chemical attributes of congeneric seedlings: how important is seedling defence?”. Functional Ecology 16.2 (2002), pp. 216-222. ISSN: 1365-2435. doi: 10.1046/j.1365-2435.2002.00612.x.
Burrows_2008_2	5	5	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	5	5	N. Burrows. Data from 'Plant Ecological Attributes' theme, NatureMap, DBCA, WA. 2020.
vanderMoezel_1987	5	5	P. G. van der Moezel, W. A. Loneragan, and D. T. Bell. “Northern Sandplain Kwongan - regeneration following fire, juvenile period and flowering phenology”. Journal of the Royal Society of Western Australia 69.4 (1987), pp. 123-132.
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.
Milberg_1998	4	4	P. Milberg, M. A. Perez-Fernandez, and B. B. Lamont. “Seedling growth response to added nutrients depends on seed size in three woody genera”. Journal of Ecology 86.4 (1998), pp. 624-632. doi: 10.1046/j.1365-2745.1998.00283.x.
Pate_1990	4	4	J. S. Pate, R. H. Froend, B. J. Bowen, A. Hansen, and J. Kuo. “Seedling growth and storage characteristics of seeder and resprouter species of Mediterranean-type ecosystems of SW Australia”. Annals of Botany 65.6 (1990), pp. 585-601. doi: 10.1093/oxfordjournals.aob.a087976.
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.
Sweedman_2006	2	4	L. Sweedman and D. Merritt. Australian Seeds: A Guide to Their Collection, Identification, and Biology. CSIRO Publishing, 2006. ISBN: 9780643094079.
WAH_2022_2	4	4	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2022. url: https://florabase.dpaw.wa.gov.au/.
Jordan_2020	3	3	G. J. Jordan, R. J. Carpenter, B. R. Holland, N. J. Beeton, M. D. Woodhams, and T. J. Brodribb. “Links between environment and stomatal size through evolutionary time in Proteaceae”. Proceedings of the Royal Society B: Biological Sciences 287.1919 (2020), p. 20192876. doi: 10.1098/rspb.2019.2876.
ABRS_1981	2	2	B. A. Barlow, H. T. Clifford, A. S. George, and A. K. A. McCusker. Flora of Australia. 1981. url: http://www.environment.gov.au/biodiversity/abrs/online-resources/flora/main/.
Groom_2010	2	2	P. K. Groom and B. B. Lamont. “Phosphorus accumulation in Proteaceae seeds: A synthesis”. Plant and Soil 334.1-2 (2010), pp. 61-72. doi: 10.1007/s11104-009-0135-6.
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.
Collette_2021	1	1	J. C. Collette and M. K. J. Ooi. “Distribution of seed dormancy classes across a fire-prone continent: effects of rainfall seasonality and temperature”. Annals of Botany 127.5 (2021), pp. 613-620. doi: 10.1093/aob/mcaa203.
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.