Onopordum acaulon

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Family Asteraceae

Taxonomy: Onopordum acaulon L.

Synonyms: 1 (APC 2026-07-30)

Onopordum acaule J.M.Black (orthographic variant)

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

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

Traits

Top source datasets: ABRS_2022 (4), ABRS_2023 (6), Cheal_2017 (7), NHNSW_2014_2 (3), NHNSW_2022 (4), NHNSW_2023 (10), NSWFRD_2014 (2), RBGV_2022 (3), RBGV_2023 (11), SAH_2022 (4), SAH_2023 (10), WAH_2022_2 (3), WAH_2023_2 (1), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 25 traits from 71 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 (2) [sources: Cheal_2017; NSWFRD_2014]
post_fire_recruitment (categorical): post_fire_recruitment (1) [sources: Cheal_2017]

flower morphology

flower_colour (categorical): green (1); white_cream (1) [sources: NHNSW_2014_2]

fruit morphology

fruit_length (numerical): 4.44 mm (4-5 mm) [sources: ABRS_2023; NHNSW_2023; RBGV_2023; SAH_2023]
fruit_type (categorical): achene (4) [sources: ABRS_2023; NHNSW_2023; RBGV_2023; SAH_2023]
fruit_dehiscence (categorical): indehiscent (1) [sources: ABRS_2023]
fruit_colour (categorical): brown (2); grey (1) [sources: ABRS_2023; RBGV_2023]

leaf morphology

leaf_length (numerical): 500 mm (500-500 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_width (numerical): 120 mm (120-120 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_shape (categorical): elliptical (3); oblanceolate (3); triangular (3) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_lobation (categorical): lobed (3) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_compoundness (categorical): simple (1) [sources: NHNSW_2014_2]
leaf_phyllotaxis (categorical): alternate (3) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
plant_photosynthetic_organ (categorical): leaf (4) [sources: ABRS_2023; NHNSW_2023; RBGV_2023; SAH_2023]

life history

plant_growth_form (categorical): herb (7) [sources: ABRS_2022; NHNSW_2022; NSWFRD_2014; RBGV_2022; SAH_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): annual (3); biennial (6) [sources: ABRS_2022; Cheal_2017; NHNSW_2022; RBGV_2022; SAH_2022; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (6) [sources: ABRS_2022; NHNSW_2022; RBGV_2022; SAH_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): prostrate (1); rosette (2) [sources: ABRS_2022; NHNSW_2022; SAH_2022]
flowering_time (categorical): nnnnnnnnnyyy (1) [sources: NHNSW_2014_2]
seedbank_longevity_class (categorical): widely_dispersed (1) [sources: Cheal_2017]

whole plant morphology

plant_height (numerical): 1 m (1-1 m) [sources: WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
RBGV_2023	10	11	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.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/.
SAH_2023	9	10	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/.
Cheal_2017	7	7	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.
ABRS_2023	5	6	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
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.
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/.
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/.
NHNSW_2014_2	3	3	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
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/.
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/.
NSWFRD_2014	2	2	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.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
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.