Threlkeldia diffusa

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Family Chenopodiaceae

Taxonomy: Threlkeldia diffusa R.Br.

Synonyms: 3 (APC 2026-07-30)

Threlkeldia diffusa R.Br. var. diffusa (nomenclatural synonym)
Threlkeldia diffusa var. latifolia Benth. (taxonomic synonym)
Threlkeldia drupata Diels (taxonomic synonym)

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

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

Traits

Top source datasets: ABRS_2022 (4), ABRS_2023 (7), Collette_2021 (1), Draper_2023 (3), Jordan_2001 (6), Kew_2019_1 (1), Kew_2019_3 (1), Mokany_2015 (2), Munroe_2019 (1), RBGV_2022 (4), RBGV_2023 (6), SAH_2022 (4), SAH_2023 (7), Sjostrom_2006 (4), Sweedman_2006 (3), TMAG_2009 (8), WAH_2022_2 (4), WAH_2023_2 (2), Wenk_2022 (2), Wenk_2023 (1), Wheeler_2002 (10), White_2020 (20), Williams_2011 (8), Wright_2000 (1), eFLOWER_Dun_2022 (16). See below for a full list of sources.
Summary: AusTraits contains 64 traits from 126 records in 25 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 (1) [sources: White_2020]

flower morphology

flower_colour (categorical): green (1) [sources: eFLOWER_Dun_2022]
sex_type (categorical): hermaphrodite (2); monoecious (1) [sources: Jordan_2001; Sjostrom_2006]

fruit morphology

fruit_type (categorical): nut (1) [sources: Sjostrom_2006]
fruit_fleshiness (categorical): dry (2) [sources: Jordan_2001; Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]

leaf morphology

leaf_area (numerical): 384.84 mm2 (384.84-384.84 mm2) [sources: Mokany_2015]
leaf_length (numerical): 18 mm (5-30 mm) [sources: ABRS_2023; RBGV_2023; SAH_2023; TMAG_2009; Wheeler_2002]
leaf_width (numerical): 1.25 mm (1-1.5 mm) [sources: Wheeler_2002]
leaf_shape (categorical): linear (2); narrowly_oblanceolate (1); terete (2) [sources: ABRS_2023; RBGV_2023; SAH_2023; TMAG_2009; Wheeler_2002]
leaf_lobation (categorical): unlobed (1) [sources: Wheeler_2002]
leaf_compoundness (categorical): simple (5) [sources: ABRS_2023; RBGV_2023; SAH_2023; TMAG_2009; Wheeler_2002]
leaf_phyllotaxis (categorical): alternate (3) [sources: ABRS_2023; RBGV_2023; SAH_2023]
plant_photosynthetic_organ (categorical): leaf (3) [sources: ABRS_2023; RBGV_2023; SAH_2023]

life history

photosynthetic_pathway (categorical): c3 (2); c4 (1) [sources: Munroe_2019; White_2020; Williams_2011]
plant_growth_form (categorical): herb (7); shrub (1) [sources: ABRS_2022; RBGV_2022; SAH_2022; WAH_2022_2; Wenk_2022; Wheeler_2002; White_2020; Williams_2011]
life_form (categorical): chamaephyte (1) [sources: Williams_2011]
life_history (categorical): perennial (8) [sources: ABRS_2022; Jordan_2001; RBGV_2022; SAH_2022; TMAG_2009; WAH_2022_2; Wenk_2023; Wheeler_2002]
woodiness_detailed (categorical): herbaceous (4); woody (1) [sources: ABRS_2022; RBGV_2022; SAH_2022; WAH_2022_2; Wenk_2022]
plant_succulence (categorical): succulent (1) [sources: Williams_2011]
stem_growth_habit (categorical): erect (3); prostrate (5) [sources: ABRS_2022; RBGV_2022; SAH_2022; WAH_2022_2; White_2020]
nitrogen_fixing (categorical): non_nitrogen_fixer (1) [sources: White_2020]
parasitic (categorical): not_parasitic (1) [sources: White_2020]
pollination_syndrome (categorical): abiotic (1); wind (1) [sources: Draper_2023; White_2020]
pollination_system (categorical): abiotic (1) [sources: Williams_2011]
dispersal_syndrome (categorical): endozoochory (2); hydrochory (1) [sources: Draper_2023; White_2020; Williams_2011]
dispersers (categorical): vertebrates (1); water (1) [sources: Draper_2023; White_2020]
flowering_time (categorical): yyyyyyyyyyyy (2) [sources: TMAG_2009; White_2020]
seedbank_longevity_class (categorical): persistent (1) [sources: White_2020]
seed_dormancy_class (categorical): physiological_dormancy (1) [sources: Collette_2021]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: White_2020]
clonal_spread_mechanism (categorical): non_clonal (1) [sources: Williams_2011]

seed morphology

seed_dry_mass (numerical): 2.47 mg (2.46-2.48 mg) [sources: Kew_2019_1; Mokany_2015]
seed_length (numerical): 3 mm (3-3 mm) [sources: Jordan_2001]
seed_width (numerical): 1.5 mm (1.5-1.5 mm) [sources: Jordan_2001]

whole plant morphology

plant_height (numerical): 0.31 m (0.1-0.4 m) [sources: ABRS_2023; SAH_2023; TMAG_2009; WAH_2023_2; Wheeler_2002]
plant_physical_defence_structures (categorical): absent (1) [sources: White_2020]

Sources

dataset_id	n_traits	n_records	reference
White_2020	20	20	M. White, S. Sinclair, and D. Frood. Victorian Vital Attributes Database. database. Department of Environment, Land, Water and Planning, Victoria, 2020.
eFLOWER_Dun_2022	15	16	L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
Wheeler_2002	8	10	J. R. Wheeler, N. G. Marchant, and M. Lewington. Flora of the south west: Bunbury, Augusta, Denmark. Australian Biological Resources Study ; University of Western Australia Press, 2002. ISBN: 9780642568168.
TMAG_2009	7	8	Tasmanian Herbarium. Flora of Tasmania Online. 2009. url: http://www.tmag.tas.gov.au/floratasmania.
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.
ABRS_2023	6	7	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
SAH_2023	6	7	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/.
Jordan_2001	6	6	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.
RBGV_2023	5	6	VicFlora. Flora of Victoria, Royal Botanic Gardens Victoria. accessed on 6 May, 2022.. 2023. url: https://vicflora.rbg.vic.gov.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.
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.
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/.
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.
Sweedman_2006	1	3	L. Sweedman and D. Merritt. Australian Seeds: A Guide to Their Collection, Identification, and Biology. CSIRO Publishing, 2006. ISBN: 9780643094079.
Mokany_2015	2	2	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.
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.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Kew_2019_3	1	1	Royal Botanic Gardens Kew. Salt and water tolerance data from the 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.
Wright_2000	1	1	I. J. Wright, H. T. Clifford, R. Kidson, M. L. Reed, B. L. Rice, and M. Westoby. “A survey of seed and seedling characters in 1744 Australian dicotyledon species: Cross-species trait correlations and correlated trait-shifts within evolutionary lineages”. Biological Journal of the Linnean Society 69 (2000), pp. 521-547. doi: 10.1111/j.1095-8312.2000.tb01222.x.