Secamone elliptica

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Family Apocynaceae

Taxonomy: Secamone elliptica R.Br.

Synonyms: 2 (APC 2026-07-30)

Cynanchum dichasiale O.Schwarz (taxonomic synonym)
Secamone ovata R.Br. (taxonomic synonym)

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

Secamone emetica (Retz.) R.Br. ex Schult. (misapplied)

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

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

Traits

Top source datasets: ABRS_2022 (3), ABRS_2023 (14), ATRP_2020 (1), Butler_2004 (5), Cooper_2013 (12), Crowley_2007 (2), Gallagher_2012 (3), Kooyman_2011 (12), McCarthy_2017 (9), NHNSW_2014_2 (10), NHNSW_2016 (1), NHNSW_2024 (11), NTH_2022 (3), NTH_2023 (11), Nano_2011 (2), Sjostrom_2006 (4), WAH_1998 (1), WAH_2022_2 (1), Wenk_2022 (2), Wenk_2023 (1), Wright_2000 (3), eFLOWER_Dun_2022 (30). See below for a full list of sources.
Summary: AusTraits contains 63 traits from 141 records in 22 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): resprouts (2) [sources: Crowley_2007; Nano_2011]

flower morphology

flower_colour (categorical): green (1); white_cream (1); yellow_orange (2) [sources: NHNSW_2014_2; eFLOWER_Dun_2022]
flower_diameter (numerical): 0.45 cm (0.4-0.5 cm) [sources: eFLOWER_Dun_2022]
sex_type (categorical): hermaphrodite (1) [sources: Sjostrom_2006]

fruit morphology

fruit_length (numerical): 64.38 mm (35-100 mm) [sources: ABRS_2023; Cooper_2013; NHNSW_2024; NTH_2023]
fruit_width (numerical): 8.5 mm (5-12 mm) [sources: Cooper_2013]
fruit_type (categorical): follicle (5) [sources: ABRS_2023; Cooper_2013; NHNSW_2024; NTH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (2) [sources: Cooper_2013; Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2) [sources: Cooper_2013; Sjostrom_2006]

leaf morphology

leaf_area (numerical): 536.61 mm2 (405.16-668.05 mm2) [sources: McCarthy_2017]
leaf_length (numerical): 39 mm (20-60 mm) [sources: ABRS_2023; Kooyman_2011; NHNSW_2014_2; NHNSW_2024; NTH_2023]
leaf_width (numerical): 17.9 mm (6-35 mm) [sources: ABRS_2023; Kooyman_2011; NHNSW_2014_2; NHNSW_2024; NTH_2023]
petiole_length (numerical): 0.55 cm (0.3-0.8 cm) [sources: ABRS_2023]
leaf_mass_per_area (numerical): 38.1 g/m2 (33.01-43.19 g/m2) [sources: McCarthy_2017]
leaf_type (categorical): broadleaf (1) [sources: NHNSW_2024]
leaf_shape (categorical): elliptical (2); lanceolate (2); narrowly_elliptical (2); narrowly_lanceolate (1); ovate (3) [sources: ABRS_2023; NHNSW_2024; NTH_2023]
leaf_base_shape (categorical): acute (2); cuneate (1); rounded (3) [sources: ABRS_2023; NHNSW_2024; NTH_2023]
leaf_margin (categorical): entire (1) [sources: NHNSW_2014_2]
leaf_lobation (categorical): unlobed (1) [sources: Kooyman_2011]
leaf_compoundness (categorical): simple (3) [sources: ABRS_2023; Kooyman_2011; NHNSW_2014_2]
leaf_phyllotaxis (categorical): opposite (1) [sources: NHNSW_2014_2]
plant_photosynthetic_organ (categorical): leaf (3) [sources: ABRS_2023; NHNSW_2024; NTH_2023]

life history

plant_growth_form (categorical): climber (1); climber_herbaceous (3); climber_woody (4) [sources: ABRS_2022; ATRP_2020; Butler_2004; Cooper_2013; Kooyman_2011; NTH_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (3) [sources: ABRS_2022; NTH_2022; Wenk_2023]
woodiness_detailed (categorical): woody (3) [sources: ABRS_2022; NTH_2022; Wenk_2022]
plant_climbing_mechanism (categorical): twining (1) [sources: Gallagher_2012]
stem_growth_habit (categorical): climbing (1) [sources: NHNSW_2014_2]
leaf_phenology (categorical): evergreen (1) [sources: Kooyman_2011]
dispersal_syndrome (categorical): anemochory (2) [sources: Butler_2004; NHNSW_2016]
dispersers (categorical): wind (1) [sources: Butler_2004]
flowering_time (categorical): yynnnnnnyyyy (1); yyyynnnnnyyy (1); yyyyyynnnnnn (1) [sources: Cooper_2013; NHNSW_2014_2; WAH_1998]
bud_bank_location (categorical): basal_stem_buds (2) [sources: Crowley_2007; Nano_2011]

seed morphology

seed_length (numerical): 8.5 mm (7-10 mm) [sources: Cooper_2013; Kooyman_2011]
seed_width (numerical): 3.5 mm (2-5 mm) [sources: Butler_2004; Kooyman_2011]

stem morphology

wood_density (numerical): 0.4 mg/mm3 (0.39-0.43 mg/mm3) [sources: McCarthy_2017]

Sources

dataset_id	n_traits	n_records	reference
eFLOWER_Dun_2022	23	30	L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
ABRS_2023	10	14	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
Cooper_2013	9	12	W. Cooper and W. T. Cooper. Australian rainforest fruits. CSIRO Publishing, 2013, p. 272.
Kooyman_2011	8	12	R. Kooyman, M. Rossetto, W. Cornwell, and M. Westoby. “Phylogenetic tests of community assembly across regional to continental scales in tropical and subtropical rain forests”. Global Ecology and Biogeography 20 (2011), pp. 707-716. doi: 10.1111/j.1466-8238.2010.00641.x.
NHNSW_2024	8	11	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on December, 2023.. 2024. url: https://plantnet.rbgsyd.nsw.gov.au/.
NTH_2023	8	11	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/.
NHNSW_2014_2	8	10	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
McCarthy_2017	3	9	J. K. McCarthy, J. M. Dwyer, and K. Mokany. “A regional-scale assessment of using metabolic scaling theory to predict ecosystem properties”. Proceedings of the Royal Society B: Biological Sciences 286.1915 (2019), p. 20192221. doi: 10.1098/rspb.2019.2221.
Butler_2004	5	5	D. W. Butler, R. J. Green, D. Lamb, W. J. F. Mcdonald, and P. I. Forster. “Biogeography of seed-dispersal syndromes, life-forms and seed sizes among woody rain-forest plants in Australia's subtropics”. Journal of Biogeography 34.10 (2007), pp. 1736-1750. ISSN: 1365-2699. doi: 10.1111/j.1365-2699.2007.01734.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.
ABRS_2022	3	3	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2022. url: http://www.ausflora.org.au.
Gallagher_2012	3	3	R. V. Gallagher and M. R. Leishman. “A global analysis of trait variation and evolution in climbing plants”. Journal of Biogeography 39.10 (2012), pp. 1757-1771. doi: 10.1111/j.1365-2699.2012.02773.x.
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/.
Wright_2000	3	3	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.
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.
ATRP_2020	1	1	F. A. Zich, B. P. Hyland, T. Whiffin, and R. A. Kerrigan. Australian Tropical Rainforest Plants, Edition 8. 2020. url: https://apps.lucidcentral.org/rainforest/text/intro/index.html.
NHNSW_2016	1	1	National Herbarium of NSW. Trait measurements for NSW rainforest species from PLantNET. 2016. url: http://plantnet.rbgsyd.nsw.gov.au/.
WAH_1998	1	1	Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://florabase.dpaw.wa.gov.au.
WAH_2022_2	1	1	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2022. 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.