Eriachne obtusa

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Family Poaceae

Taxonomy: Eriachne obtusa R.Br.

Synonyms: 4 (APC 2026-07-30)

Achneria obtusa (R.Br.) P.Beauv. (nomenclatural synonym)
Eriachne obtusa R.Br. var. obtusa (nomenclatural synonym)
Eriachne obtusa var. glauca Domin (taxonomic synonym)
Eriachne obtusa var. typica Domin (nomenclatural synonym)

Distribution (APC): WA, NT, Qld

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

Traits

Top source datasets: ABRS_2022 (3), ABRS_2023 (9), Crowley_2007 (2), GrassBase_2014 (8), Kew_2019_1 (1), Lord_1997 (4), Metcalfe_2020_2 (18), Munroe_2019 (1), NHNSW_2014 (1), Nano_2011 (2), Osborne_2014 (1), Rice_1991 (1), Simpson_2021 (2), Sjostrom_2006 (4), WAH_2022_2 (3), WAH_2023_2 (3), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 28 traits from 66 records in 18 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

sex_type (categorical): hermaphrodite (2) [sources: Metcalfe_2020_2; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1.81 mm (1.5-2 mm) [sources: ABRS_2023; Metcalfe_2020_2]
fruit_type (categorical): caryopsis (4) [sources: ABRS_2023; Metcalfe_2020_2; Sjostrom_2006; WAH_2023_2]
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): 157.5 mm2 (157.5-157.5 mm2) [sources: Metcalfe_2020_2]
leaf_length (numerical): 132.5 mm (50-160 mm) [sources: ABRS_2023; GrassBase_2014]
leaf_width (numerical): 3.25 mm (1-4 mm) [sources: ABRS_2023; GrassBase_2014]
leaf_compoundness (categorical): simple (1) [sources: Metcalfe_2020_2]
leaf_phyllotaxis (categorical): alternate (1) [sources: ABRS_2023]
plant_photosynthetic_organ (categorical): leaf (1) [sources: ABRS_2023]

life history

photosynthetic_pathway (categorical): c4 (3) [sources: Metcalfe_2020_2; Munroe_2019; Osborne_2014]
plant_growth_form (categorical): graminoid (3); herb (3); tussock (2) [sources: ABRS_2022; Lord_1997; Metcalfe_2020_2; Rice_1991; WAH_2022_2; Wenk_2022]
life_form (categorical): hemicryptophyte (1) [sources: Metcalfe_2020_2]
life_history (categorical): perennial (4) [sources: ABRS_2022; Simpson_2021; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (3) [sources: ABRS_2022; WAH_2022_2; Wenk_2022]
root_structure (categorical): non_mycorrhizal (1) [sources: Metcalfe_2020_2]
pollination_syndrome (categorical): wind (1) [sources: Metcalfe_2020_2]
dispersal_syndrome (categorical): anemochory (2) [sources: Lord_1997; Metcalfe_2020_2]
dispersers (categorical): wind (1) [sources: Lord_1997]
flowering_time (categorical): yyyyyyyynnny (1) [sources: NHNSW_2014]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: Metcalfe_2020_2]
bud_bank_location (categorical): basal_stem_buds (2); root_crown (1) [sources: Crowley_2007; Nano_2011; Simpson_2021]

seed morphology

seed_dry_mass (numerical): 0.71 mg (0.56-1 mg) [sources: Kew_2019_1; Lord_1997; Metcalfe_2020_2]
seed_length (numerical): 1.75 mm (1.5-2 mm) [sources: GrassBase_2014]

whole plant morphology

plant_height (numerical): 0.55 m (0.2-0.9 m) [sources: ABRS_2023; GrassBase_2014; Metcalfe_2020_2; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
Metcalfe_2020_2	17	18	D. Metcalfe. “Unpublished data: Traits of Poaceae spp, CSIRO”. 2020.
ABRS_2023	7	9	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
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.
Lord_1997	4	4	J. Lord, J. Egan, T. Clifford, E. Jurado, M. Leishman, D. Williams, and M. Westoby. “Larger seeds in tropical floras: Consistent patterns independent of growth form and dispersal mode”. Journal of Biogeography 24 (1997), pp. 205-211. doi: 10.1046/j.1365-2699.1997.00126.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.
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/.
WAH_2023_2	2	3	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. 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.
Simpson_2021	2	2	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_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. 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.
NHNSW_2014	1	1	Royal Botanic Gardens Sydney. PLantNET. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/search/simple.htm.
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.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.