Ischaemum decumbens

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Family Poaceae

Taxonomy: Ischaemum decumbens Benth.

Synonyms: 1 (APC 2026-07-30)

Ischaemum aristatum subvar. decumbens (Benth.) Roberty (nomenclatural synonym)

Distribution (APC): NT, Qld

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

Traits

Top source datasets: Crowley_2007 (1), GrassBase_2014 (8), Kew_2019_1 (2), Kew_2019_6 (1), Metcalfe_2020_2 (15), NHNSW_2014 (1), Nano_2011 (1), Osborne_2014 (1), Rice_1991 (1), Simpson_2021 (1), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 25 traits from 39 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): partial_resprouting (1); resprouts (1) [sources: Crowley_2007; Nano_2011]

flower morphology

sex_type (categorical): andromonoecious (1); monoecious (1) [sources: Metcalfe_2020_2; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1 mm (1-1 mm) [sources: Metcalfe_2020_2]
fruit_type (categorical): caryopsis (2) [sources: Metcalfe_2020_2; Sjostrom_2006]
fruit_fleshiness (categorical): dry (2) [sources: Metcalfe_2020_2; Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (1); indehiscent (2) [sources: Metcalfe_2020_2; Sjostrom_2006]

leaf morphology

leaf_area (numerical): 63 mm2 (63-63 mm2) [sources: Metcalfe_2020_2]
leaf_length (numerical): 30 mm (10-50 mm) [sources: GrassBase_2014]
leaf_width (numerical): 3.5 mm (1-6 mm) [sources: GrassBase_2014]
leaf_compoundness (categorical): simple (1) [sources: Metcalfe_2020_2]

life history

photosynthetic_pathway (categorical): c4 (2) [sources: Metcalfe_2020_2; Osborne_2014]
plant_growth_form (categorical): herb (1); tussock (2) [sources: Metcalfe_2020_2; Rice_1991; Wenk_2022]
life_form (categorical): therophyte (1) [sources: Metcalfe_2020_2]
life_history (categorical): annual (2) [sources: Simpson_2021; Wenk_2023]
woodiness_detailed (categorical): herbaceous (1) [sources: Wenk_2022]
root_structure (categorical): non_mycorrhizal (1) [sources: Metcalfe_2020_2]
pollination_syndrome (categorical): wind (1) [sources: Metcalfe_2020_2]
dispersal_syndrome (categorical): hydrochory (1) [sources: Metcalfe_2020_2]
flowering_time (categorical): nnnyyyyyyynn (1) [sources: NHNSW_2014]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: Metcalfe_2020_2]

seed morphology

seed_dry_mass (numerical): 1.96 mg (0.21-3.71 mg) [sources: Kew_2019_1]
seed_length (numerical): 1 mm (1-1 mm) [sources: GrassBase_2014]

whole plant morphology

plant_height (numerical): 0.22 m (0.05-0.4 m) [sources: GrassBase_2014]

Sources

dataset_id	n_traits	n_records	reference
Metcalfe_2020_2	15	15	D. Metcalfe. “Unpublished data: Traits of Poaceae spp, CSIRO”. 2020.
GrassBase_2014	4	8	W. Clayton, M. Vorontsova, and K. H. &. H. Williamson. GrassBase - The online world grass flora. 2006. url: http://www.kew.org/data/grasses-db.html.
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.
Kew_2019_1	1	2	Royal Botanic Gardens Kew. 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.
Crowley_2007	1	1	G. Crowley, M. Gardener, and M. Marrinan. Tropical savannas fire response database. 2007. url: [www.landmanager.org.au](www.landmanager.org.au).
Kew_2019_6	1	1	Royal Botanic Gardens Kew. Germination data from the Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
NHNSW_2014	1	1	Royal Botanic Gardens Sydney. PLantNET. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/search/simple.htm.
Nano_2011	1	1	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.
Osborne_2014	1	1	C. Osborne, A. Salomaa, T. Kluyver, V. Visser, E. Kellogg, O. Morrone, M. Vorontsova, W. Clayton, and D. Simpson. “A global database of C4 photosynthesis in grasses”. New Phytologist 204 (2014), pp. 441-446. doi: 10.1111/nph.12942.
Rice_1991	1	1	B. Rice. “Unpublished data: Growth form of Kakadu plant species, Macquarie University”. 1991.
Simpson_2021	1	1	K. J. Simpson, E. C. Jardine, S. Archibald, E. J. Forrestel, C. E. R. Lehmann, G. H. Thomas, and C. P. Osborne. “Resprouting grasses are associated with less frequent fire than seeders”. New Phytologist 230 (2021), pp. 832-844. doi: 10.1111/nph.17069.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.