Ozothamnus retusus

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Family Asteraceae

Taxonomy: Ozothamnus retusus F.Muell. & Sond.

Synonyms: 6 (APC 2026-07-30)

Helichrysum bilobum N.A.Wakef. (taxonomic synonym)
Helichrysum bilobum N.A.Wakef. subsp. bilobum (taxonomic synonym)
Helichrysum bilobum N.A.Wakef. var. bilobum (taxonomic synonym)
Helichrysum retusum (F.Muell. & Sond.) F.Muell. (nomenclatural synonym)
Helichrysum retusum (F.Muell. & Sond.) F.Muell. var. retusum (nomenclatural synonym)
Ozothamnus bilobus (N.A.Wakef.) Anderb. (taxonomic synonym)

Distribution (APC): SA, Vic

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

Traits

Top source datasets: Collette_2021 (1), Dong_2017 (8), Draper_2023 (3), Kew_2019_1 (2), Kew_2019_6 (2), McGlone_2015 (6), Munroe_2019 (1), RBGV_2022 (4), RBGV_2023 (11), SAH_2014 (1), SAH_2022 (4), SAH_2023 (8), 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 96 records in 16 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: White_2020]

flower morphology

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

fruit morphology

fruit_length (numerical): 0.8 mm (0.8-0.8 mm) [sources: RBGV_2023]
fruit_type (categorical): achene (3) [sources: RBGV_2023; SAH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]
fruit_colour (categorical): brown (1) [sources: SAH_2023]

leaf morphology

leaf_length (numerical): 15.17 mm (4-25 mm) [sources: McGlone_2015; RBGV_2023; SAH_2023]
leaf_width (numerical): 2 mm (0.5-3 mm) [sources: McGlone_2015; RBGV_2023; SAH_2023]
leaf_mass_per_area (numerical): 196.75 g/m2 (196.75-196.75 g/m2) [sources: Dong_2017]
leaf_shape (categorical): linear (2); narrowly_oblanceolate (1) [sources: RBGV_2023; SAH_2023]
leaf_margin (categorical): entire (1) [sources: RBGV_2023]
leaf_margin_posture (categorical): revolute (1) [sources: RBGV_2023]
leaf_compoundness (categorical): simple (1) [sources: McGlone_2015]
plant_photosynthetic_organ (categorical): leaf (2) [sources: RBGV_2023; SAH_2023]

life history

photosynthetic_pathway (categorical): c3 (3) [sources: Munroe_2019; White_2020]
plant_growth_form (categorical): shrub (6) [sources: McGlone_2015; RBGV_2022; SAH_2022; Wenk_2022; White_2020]
life_history (categorical): annual (1); perennial (2) [sources: RBGV_2022; SAH_2022; Wenk_2023]
woodiness_detailed (categorical): woody (3) [sources: RBGV_2022; SAH_2022; Wenk_2022]
stem_growth_habit (categorical): erect (2) [sources: RBGV_2022; SAH_2022]
nitrogen_fixing (categorical): non_nitrogen_fixer (3) [sources: Dong_2017; White_2020]
parasitic (categorical): not_parasitic (2) [sources: White_2020]
pollination_syndrome (categorical): insect (3) [sources: Draper_2023; White_2020]
dispersal_syndrome (categorical): anemochory (3) [sources: Draper_2023; White_2020]
dispersers (categorical): wind (3) [sources: Draper_2023; White_2020]
flowering_time (categorical): ynnnnnnnnyyy (1); yynnnnnnyyyy (1) [sources: White_2020]
seedbank_longevity_class (categorical): transient (2) [sources: White_2020]
seed_dormancy_class (categorical): physiological_dormancy (1) [sources: Collette_2021]
vegetative_reproduction_ability (categorical): not_vegetative (2) [sources: White_2020]

nutrient and stable isotope

leaf_N_per_dry_mass (numerical): 13.77 mg/g (13.77-13.77 mg/g) [sources: Dong_2017]
leaf_delta13C (numerical): -29.41 {delta}[ppth] (-29.41--29.41 {delta}[ppth]) [sources: Dong_2017]

seed morphology

seed_dry_mass (numerical): 0.17 mg (0.07-0.27 mg) [sources: Kew_2019_1]

whole plant morphology

plant_height (numerical): 1.17 m (0.5-1.5 m) [sources: McGlone_2015; RBGV_2023; SAH_2014]
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.
RBGV_2023	9	11	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.gov.au/.
Dong_2017	8	8	N. Dong, I. C. Prentice, B. J. Evans, S. Caddy-Retalic, A. J. Lowe, and I. J. Wright. “Leaf nitrogen from first principles: field evidence for adaptive variation with climate”. Biogeosciences 14.2 (2017), pp. 481-495. doi: 10.5194/bg-14-481-2017.
SAH_2023	6	8	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/.
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.
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/.
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/.
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.
Kew_2019_1	1	2	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Kew_2019_6	1	2	Royal Botanic Gardens Kew. Germination data from the Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
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.
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.
SAH_2014	1	1	J. P. Jessop and H. R. Toelken. Flora of South Australia, 4th edition, 4 vols. Electronic version curated by J. Kellermann, State Herbarium of South Australia.. Government Printer, Adelaide, 1986.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.