Hyalosperma demissum

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Family Asteraceae

Taxonomy: Hyalosperma demissum (A.Gray) Paul G.Wilson

Synonyms: 4 (APC 2026-07-30)

Argyrocome exigua (F.Muell.) Kuntze (taxonomic synonym)
Helipterum demissum (A.Gray) Druce (nomenclatural synonym)
Helipterum exiguum F.Muell. (taxonomic synonym)
Pteropogon demissus A.Gray (nomenclatural synonym)

Distribution (APC): WA, SA, NSW, Vic, Tas

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

Traits

Top source datasets: Cheal_2017 (8), Draper_2023 (3), Dwyer_2017 (15), Gosper_2018 (4), Jordan_2001 (7), Kew_2019_1 (3), Kew_2019_6 (1), Lunt_2012 (2), Mokany_2015 (1), Morgan_2011_1 (5), Munroe_2019 (1), NHNSW_2014_2 (3), NHNSW_2022 (3), NHNSW_2023 (10), NSWFRD_2014 (3), RBGV_2022 (3), RBGV_2023 (8), SAH_2022 (4), SAH_2023 (11), Sjostrom_2006 (3), Standish_2019 (7), Tsakalos_2020 (15), WAH_1998 (1), WAH_2022_2 (3), WAH_2023_2 (1), Wenk_2022 (2), Wenk_2023 (1), White_2020 (38), Williams_2011 (8). See below for a full list of sources.
Summary: AusTraits contains 57 traits from 174 records in 29 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 (5) [sources: Cheal_2017; NSWFRD_2014; Standish_2019; White_2020]
post_fire_recruitment (categorical): post_fire_recruitment (1) [sources: Cheal_2017]

flower morphology

flower_colour (categorical): green (1); red_brown (1); white_cream (1) [sources: NHNSW_2014_2]
sex_type (categorical): hermaphrodite (1); monoecious (1) [sources: Jordan_2001]

fruit morphology

fruit_length (numerical): 0.77 mm (0.7-1 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
fruit_type (categorical): achene (4) [sources: NHNSW_2023; RBGV_2023; SAH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (3) [sources: Jordan_2001; Sjostrom_2006; Tsakalos_2020]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]
fruit_colour (categorical): brown (1) [sources: SAH_2023]

leaf morphology

leaf_area (numerical): 7.85 mm2 (7.85-7.85 mm2) [sources: Mokany_2015]
leaf_length (numerical): 4.5 mm (2-5 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_width (numerical): 0.4 mm (0.2-0.6 mm) [sources: NHNSW_2023; SAH_2023]
leaf_mass_per_area (numerical): 26.34 g/m2 (26.02-27.15 g/m2) [sources: Dwyer_2017]
leaf_shape (categorical): linear (2); terete (2) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_margin (categorical): entire (3) [sources: NHNSW_2014_2; RBGV_2023; Tsakalos_2020]
leaf_compoundness (categorical): simple (2) [sources: NHNSW_2023; Tsakalos_2020]
leaf_glaucousness (categorical): not_glaucous (2) [sources: Tsakalos_2020]
leaf_hairs_adult_leaves (categorical): glabrous (1) [sources: Tsakalos_2020]
leaf_phyllotaxis (categorical): alternate (3); opposite (2) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
plant_photosynthetic_organ (categorical): leaf (4) [sources: NHNSW_2023; RBGV_2023; SAH_2023; Tsakalos_2020]

life history

photosynthetic_pathway (categorical): c3 (4) [sources: Munroe_2019; Tsakalos_2020; White_2020]
plant_growth_form (categorical): herb (10) [sources: NHNSW_2022; NSWFRD_2014; RBGV_2022; SAH_2022; Standish_2019; WAH_2022_2; Wenk_2022; White_2020; Williams_2011]
life_form (categorical): therophyte (3) [sources: Gosper_2018; Morgan_2011_1; Williams_2011]
life_history (categorical): annual (10) [sources: Cheal_2017; Gosper_2018; Jordan_2001; Morgan_2011_1; NHNSW_2022; RBGV_2022; SAH_2022; Standish_2019; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (6) [sources: NHNSW_2022; RBGV_2022; SAH_2022; Tsakalos_2020; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): dense (1); prostrate (1) [sources: SAH_2022; Tsakalos_2020]
nitrogen_fixing (categorical): non_nitrogen_fixer (4) [sources: Standish_2019; White_2020; Williams_2011]
root_structure (categorical): arbuscular_mycorrhizal (3) [sources: Standish_2019; Tsakalos_2020; Williams_2011]
parasitic (categorical): not_parasitic (3) [sources: Tsakalos_2020; White_2020]
pollination_syndrome (categorical): insect (3) [sources: Draper_2023; White_2020]
pollination_system (categorical): biotic_unspecialised (1) [sources: Williams_2011]
dispersal_syndrome (categorical): anemochory (5) [sources: Draper_2023; Morgan_2011_1; White_2020; Williams_2011]
dispersers (categorical): wind (3) [sources: Draper_2023; White_2020]
flowering_time (categorical): nnnnnnnnyyyn (4); nnnnnnnyyyyn (1); nnnnyyyyyynn (1) [sources: NHNSW_2014_2; NSWFRD_2014; Tsakalos_2020; WAH_1998; White_2020]
seedbank_location (categorical): canopy_seedbank_absent (1); soil_seedbank (1) [sources: Gosper_2018; Standish_2019]
serotiny (categorical): not_serotinous (1) [sources: Gosper_2018]
seedbank_longevity_class (categorical): long_persistent (1); persistent (2) [sources: Cheal_2017; White_2020]
vegetative_reproduction_ability (categorical): not_vegetative (3) [sources: Morgan_2011_1; White_2020]
clonal_spread_mechanism (categorical): non_clonal (1) [sources: Williams_2011]

seed morphology

seed_dry_mass (numerical): 0.06 mg (0.01-0.2 mg) [sources: Dwyer_2017; Kew_2019_1; Lunt_2012; Standish_2019]
seed_length (numerical): 0.7 mm (0.7-0.7 mm) [sources: Jordan_2001]
seed_width (numerical): 0.2 mm (0.2-0.2 mm) [sources: Jordan_2001]

whole plant morphology

plant_height (numerical): 0.02 m (0-0.02 m) [sources: NHNSW_2023; RBGV_2023; SAH_2023; WAH_2023_2]
plant_physical_defence_structures (categorical): absent (3) [sources: Tsakalos_2020; White_2020]

Sources

dataset_id	n_traits	n_records	reference
White_2020	19	38	M. White, S. Sinclair, and D. Frood. Victorian Vital Attributes Database. database. Department of Environment, Land, Water and Planning, Victoria, 2020.
Dwyer_2017	3	15	J. M. Dwyer and D. C. Laughlin. “Constraints on trait combinations explain climatic drivers of biodiversity: The importance of trait covariance in community assembly”. Ecology Letters 20.7 (2017), pp. 872-882. doi: 10.1111/ele.12781.
Tsakalos_2020	14	15	J. L. Tsakalos, M. Renton, F. Riviera, E. J. Veneklaas, M. P. Dobrowolski, and L. Mucina. “Trait-based formal definition of plant functional types and functional communities in the multi-species and multi-traits context”. Ecological Complexity 40 (2019), p. 100787. doi: 10.1016/j.ecocom.2019.100787.
SAH_2023	9	11	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/.
NHNSW_2023	9	10	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/.
Cheal_2017	8	8	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.
RBGV_2023	8	8	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.gov.au/.
Williams_2011	8	8	R. P. Duncan, S. E. Clemants, R. T. Corlett, A. K. Hahs, M. A. McCarthy, M. J. McDonnell, M. W. Schwartz, K. Thompson, P. A. Vesk, and N. S. G. Williams. “Plant traits and extinction in urban areas: a meta-analysis of 11 cities”. Global Ecology and Biogeography 20.4 (2011), pp. 509-519. doi: 10.1111/j.1466-8238.2010.00633.x.
Jordan_2001	7	7	G. J. Jordan. “An investigation of long-distance dispersal based on species native to both Tasmania and New Zealand”. Australian Journal of Botany 49.3 (2001), pp. 333-340. doi: 10.1071/bt00024.
Standish_2019	7	7	R. Standish. “Unpublished data: Jarrah forest, Murdoch University”. 2019.
Morgan_2011_1	5	5	J. Morgan. “Unpublished data: Grassy woodland traits, La Trobe University”. 2011.
Gosper_2018	4	4	C. R. Gosper, C. J. Yates, G. D. Cook, J. M. Harvey, A. C. Liedloff, W. L. McCaw, K. R. Thiele, and S. M. Prober. “A conceptual model of vegetation dynamics for the unique obligate-seeder eucalypt woodlands of south-western Australia”. Austral Ecology 43.6 (2018), pp. 681-695. doi: 10.1111/aec.12613.
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/.
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.
Kew_2019_1	1	3	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
NHNSW_2014_2	3	3	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
NHNSW_2022	3	3	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/.
NSWFRD_2014	3	3	B. Kenny, C. Orscheg, E. Tasker, M. A. Gill, and R. Bradstock. NSW Flora Fire Response Database, v2.1. database. NSW Department of Planning Industry and Environment, 2014.
RBGV_2022	3	3	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2022. url: https://vicflora.rbg.vic.gov.au/.
Sjostrom_2006	3	3	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.
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/.
Lunt_2012	1	2	I. Lunt and J. Morgan. “Unpublished data: Trait data from various Morgan and Lunt projects 1990-2012, Charles Sturt & La Trobe University”. 2012.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Kew_2019_6	1	1	Royal Botanic Gardens Kew. Germination data from the Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Mokany_2015	1	1	K. Mokany, J. J. Thomson, A. J. J. Lynch, G. J. Jordan, and S. Ferrier. “Linking changes in community composition and function under climate change”. Ecological Applications 25.8 (2015), pp. 2132-2141. doi: 10.1890/14-2384.1.
Munroe_2019	1	1	S. E. M. Munroe, F. A. McInerney, J. Andrae, N. Welti, G. R. Guerin, E. Leitch, T. Hall, S. Szarvas, R. Atkins, S. Caddy-Retalic, and B. Sparrow. “The Photosynthetic Pathways of Plant Species Surveyed in Australia's National Terrestrial Monitoring Network”. Scientific Data 8 (2021), p. 97. doi: 10.1038/s41597-021-00877-z.
WAH_1998	1	1	Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://florabase.dpaw.wa.gov.au.
WAH_2023_2	1	1	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. url: https://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.