Pycnosorus pleiocephalus

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Family Asteraceae

Taxonomy: Pycnosorus pleiocephalus (F.Muell.) J.Everett & Doust

Synonyms: 2 (APC 2026-07-30)

Craspedia pleiocephala F.Muell. (nomenclatural synonym)
Craspedia plejocephala F.Muell. (nomenclatural synonym)

Misapplied names: 1 (APC 2026-07-30)

Craspedia chrysantha (Schltdl.) Benth. (pro parte misapplied)

Distribution (APC): WA, NT, SA, Qld, NSW, Vic

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

Traits

Top source datasets: ANBG_2019 (9), Burrows_2008_2 (4), Burrows_2020 (4), Draper_2023 (3), Kew_2019_1 (1), Munroe_2019 (1), NHNSW_2014_2 (3), NHNSW_2022 (3), NHNSW_2023 (15), NSWFRD_2014 (3), RBGV_2022 (4), RBGV_2023 (12), SAH_2022 (3), SAH_2023 (13), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1), White_2020 (38). See below for a full list of sources.
Summary: AusTraits contains 47 traits from 123 records in 18 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: Burrows_2008_2; Burrows_2020; NSWFRD_2014; White_2020]
fire_time_from_fire_to_flowering (numerical): 12 mo (12-12 mo) [sources: Burrows_2020]

flower morphology

flower_colour (categorical): red_brown (1); yellow_orange (1) [sources: NHNSW_2014_2]
sex_type (categorical): hermaphrodite (1) [sources: Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1.83 mm (1.5-2 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
fruit_width (numerical): 1.25 mm (1-1.5 mm) [sources: NHNSW_2023]
fruit_type (categorical): achene (4) [sources: NHNSW_2023; RBGV_2023; SAH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]

leaf morphology

leaf_length (numerical): 38.33 mm (10-70 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_width (numerical): 5.33 mm (1-10 mm) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_shape (categorical): elliptical (1); oblanceolate (3); oblong (1) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
leaf_margin (categorical): entire (2) [sources: NHNSW_2023; SAH_2023]
leaf_compoundness (categorical): simple (1) [sources: NHNSW_2014_2]
leaf_lamina_posture (categorical): flat (1) [sources: SAH_2023]
leaf_phyllotaxis (categorical): alternate (3) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
plant_photosynthetic_organ (categorical): leaf (3) [sources: NHNSW_2023; RBGV_2023; SAH_2023]

life history

photosynthetic_pathway (categorical): c3 (3) [sources: Munroe_2019; White_2020]
plant_growth_form (categorical): herb (7) [sources: NHNSW_2022; NSWFRD_2014; RBGV_2022; SAH_2022; Wenk_2022; White_2020]
life_history (categorical): annual (2); perennial (3) [sources: Burrows_2008_2; Burrows_2020; RBGV_2022; SAH_2022; Wenk_2023]
woodiness_detailed (categorical): herbaceous (4) [sources: NHNSW_2022; RBGV_2022; SAH_2022; Wenk_2022]
stem_growth_habit (categorical): decumbent (2); erect (2) [sources: NHNSW_2022; RBGV_2022]
nitrogen_fixing (categorical): non_nitrogen_fixer (2) [sources: White_2020]
parasitic (categorical): not_parasitic (2) [sources: White_2020]
pollination_syndrome (categorical): insect (3) [sources: Draper_2023; White_2020]
reproductive_maturity (numerical): 1 a (1-1 a) [sources: Burrows_2020]
dispersal_syndrome (categorical): anemochory (3) [sources: Draper_2023; White_2020]
dispersers (categorical): wind (3) [sources: Draper_2023; White_2020]
flowering_time (categorical): nnnnnnnnyyyy (4) [sources: NHNSW_2014_2; NSWFRD_2014; White_2020]
seedbank_longevity_class (categorical): transient (2) [sources: White_2020]
vegetative_reproduction_ability (categorical): not_vegetative (2) [sources: White_2020]
bud_bank_location (categorical): none (1) [sources: Burrows_2008_2]

seed morphology

seed_dry_mass (numerical): 0.73 mg (0.61-1 mg) [sources: ANBG_2019; Kew_2019_1]
seed_length (numerical): 3.83 mm (3.83-3.83 mm) [sources: ANBG_2019]
seed_width (numerical): 0.98 mm (0.98-0.98 mm) [sources: ANBG_2019]
seed_shape (categorical): cylindrical (1) [sources: ANBG_2019]

whole plant morphology

plant_height (numerical): 0.32 m (0.05-0.4 m) [sources: NHNSW_2023; RBGV_2023; SAH_2023]
plant_physical_defence_structures (categorical): absent (2) [sources: 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.
NHNSW_2023	11	15	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	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/.
RBGV_2023	9	12	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.gov.au/.
ANBG_2019	6	9	Australian National Botanic Gardens. The National Seed Bank. 2018. url: http://www.anbg.gov.au/gardens/living/seedbank/.
Burrows_2008_2	4	4	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	4	4	N. Burrows. Data from 'Plant Ecological Attributes' theme, NatureMap, DBCA, WA. 2020.
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.
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.
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.
SAH_2022	3	3	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/.
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/.
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.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.