Euphorbia biconvexa

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Family Euphorbiaceae

Taxonomy: Euphorbia biconvexa Domin

Synonyms: 2 (APC 2026-07-30)

Chamaesyce biconvexa (Domin) D.C.Hassall (nomenclatural synonym)
Chamaesyce sp. (Mayne River V.J.Neldner+ 2525) (taxonomic synonym)

Misapplied names: 3 (APC 2026-07-30)

Chamaesyce coghlanii (F.M.Bailey) D.C.Hassall ex P.I.Forst. & R.J.F.Hend. (pro parte misapplied)
Euphorbia coghlanii F.M.Bailey (pro parte misapplied)
Euphorbia wheeleri Baill. (pro parte misapplied)

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

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

Traits

Top source datasets: Crowley_2007 (2), Draper_2023 (3), Munroe_2019 (1), NTH_2022 (3), NTH_2023 (17), Nano_2011 (2), RussellSmith_2012 (4), Sjostrom_2006 (4), Stephens_2021 (1), 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 29 traits from 44 records in 13 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 (3) [sources: Crowley_2007; Nano_2011; RussellSmith_2012]

flower morphology

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

fruit morphology

fruit_length (numerical): 2 mm (1.5-2.5 mm) [sources: NTH_2023]
fruit_type (categorical): capsule (1); mericarp (1) [sources: NTH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2) [sources: NTH_2023; Sjostrom_2006]

leaf morphology

leaf_length (numerical): 21 mm (6-36 mm) [sources: NTH_2023]
leaf_width (numerical): 5.75 mm (1.5-10 mm) [sources: NTH_2023]
leaf_shape (categorical): oblong (1); ovate (1) [sources: NTH_2023]
leaf_margin (categorical): entire (1); toothed (1) [sources: NTH_2023]
leaf_phyllotaxis (categorical): opposite (1) [sources: NTH_2023]
plant_photosynthetic_organ (categorical): leaf (1) [sources: NTH_2023]

life history

photosynthetic_pathway (categorical): c4 (1) [sources: Munroe_2019]
plant_growth_form (categorical): herb (3) [sources: NTH_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): annual (2); perennial (1) [sources: WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (3) [sources: NTH_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): decumbent (1); erect (1) [sources: NTH_2022]
pollination_syndrome (categorical): insect (1) [sources: Draper_2023]
dispersal_syndrome (categorical): barochory (1) [sources: Draper_2023]
dispersers (categorical): passive (1) [sources: Draper_2023]
flowering_time (categorical): yyyyyyyyyyyy (1) [sources: Stephens_2021]
seedbank_longevity_class (categorical): persistent (1) [sources: RussellSmith_2012]
bud_bank_location (categorical): none (2) [sources: Crowley_2007; Nano_2011]

seed morphology

seed_length (numerical): 1.25 mm (1-1.5 mm) [sources: NTH_2023]
seed_shape (categorical): lenticular (1) [sources: NTH_2023]

whole plant morphology

plant_height (numerical): 0.6 m (0.4-0.8 m) [sources: NTH_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
NTH_2023	13	17	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.gov.au/.
RussellSmith_2012	4	4	J. Russell-Smith, M. R. Gardener, C. Brock, K. Brennan, C. P. Yates, and B. Grace. “Fire persistence traits can be used to predict vegetation response to changing fire regimes at expansive landscape scales - an Australian example”. Journal of Biogeography 39 (2012), pp. 1657-1668. doi: 10.1111/j.1365-2699.2012.02714.x.
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.
NTH_2022	3	3	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.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/.
Crowley_2007	2	2	G. Crowley, M. Gardener, and M. Marrinan. Tropical savannas fire response database. 2007. url: [www.landmanager.org.au](www.landmanager.org.au).
Nano_2011	2	2	C. E. M. Nano and P. J. Clarke. “How do drought and fire influence the patterns of resprouting in Australian deserts?”. Plant Ecology 212 (2011), pp. 2095-2110. doi: 10.1007/s11258-011-9988-x.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
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.
Stephens_2021	1	1	R. Stephens. “Unpublished data: Flowering time data from TERN plots, Macquarie University.”. 2021.
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.