Alloteropsis semialata

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Family Poaceae

Taxonomy: Alloteropsis semialata (R.Br.) Hitchc.

Synonyms: 10 (APC 2026-07-30)

Alloteropsis eckloniana (Nees) Hitchc. (taxonomic synonym)
Alloteropsis semialata var. eckloniana (Nees) C.E.Hubb. ex Bor (taxonomic synonym)
Axonopus semialatus (R.Br.) Hook.f. (nomenclatural synonym)
Bluffia ecklonia Nees (taxonomic synonym)
Coridochloa semialata Nees (nomenclatural synonym)
Oplismenus semialatus (R.Br.) Desv. (nomenclatural synonym)
Panicum semialatum R.Br. (nomenclatural synonym)
Paspalum semialatum (R.Br.) Dalla Torre & Harms ex Eyles (nomenclatural synonym)
Paspalum semialatus Eyles (nomenclatural synonym)
Urochloa semialata (R.Br.) Kunth (nomenclatural synonym)

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

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

Traits

Top source datasets: Crowley_2007 (2), Draper_2023 (3), GrassBase_2014 (5), Kew_2019_1 (3), Lord_1997 (4), Metcalfe_2020_2 (18), Moles_2011 (6), Munroe_2019 (1), NHNSW_2014_2 (1), NHNSW_2022 (4), NHNSW_2023 (5), NSWFRD_2014 (4), NTH_2022 (3), NTH_2023 (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), White_2020 (18), eFLOWER_Dun_2022 (8). See below for a full list of sources.
Summary: AusTraits contains 50 traits from 105 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): resprouts (4) [sources: Crowley_2007; NSWFRD_2014; Nano_2011; White_2020]
post_fire_recruitment (categorical): post_fire_recruitment_absent (1) [sources: NSWFRD_2014]

flower morphology

flower_colour (categorical): green (1) [sources: eFLOWER_Dun_2022]
sex_type (categorical): andromonoecious (1); hermaphrodite (1) [sources: Metcalfe_2020_2; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1.4 mm (1.3-1.5 mm) [sources: Metcalfe_2020_2]
fruit_type (categorical): caryopsis (5) [sources: Metcalfe_2020_2; NHNSW_2023; NTH_2023; 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): 915.8 mm2 (841.61-990 mm2) [sources: Metcalfe_2020_2; Moles_2011]
leaf_length (numerical): 300 mm (100-500 mm) [sources: GrassBase_2014]
leaf_width (numerical): 5.5 mm (1-10 mm) [sources: GrassBase_2014]
leaf_mass_per_area (numerical): 69.59 g/m2 (69.59-69.59 g/m2) [sources: Moles_2011]
leaf_dry_matter_content (numerical): 0.28 g/g (0.28-0.28 g/g) [sources: Moles_2011]
leaf_compoundness (categorical): simple (1) [sources: Metcalfe_2020_2]
leaf_hairs_adult_leaves (categorical): glabrous (1) [sources: Moles_2011]
leaf_phyllotaxis (categorical): alternate (1) [sources: NHNSW_2023]
plant_photosynthetic_organ (categorical): leaf (1) [sources: NHNSW_2023]

life history

photosynthetic_pathway (categorical): c3 (1); c4 (3) [sources: Metcalfe_2020_2; Munroe_2019; Osborne_2014; White_2020]
plant_growth_form (categorical): graminoid (5); graminoid_not_tussock (1); herb (5); tussock (1) [sources: Lord_1997; Metcalfe_2020_2; Moles_2011; NHNSW_2022; NSWFRD_2014; NTH_2022; Rice_1991; WAH_2022_2; Wenk_2022; White_2020]
life_form (categorical): geophyte (1) [sources: Metcalfe_2020_2]
life_history (categorical): perennial (5) [sources: NHNSW_2022; NTH_2022; Simpson_2021; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (4) [sources: NHNSW_2022; NTH_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): erect (1); rhizomatous (1) [sources: NHNSW_2022]
nitrogen_fixing (categorical): non_nitrogen_fixer (1) [sources: White_2020]
root_structure (categorical): non_mycorrhizal (1) [sources: Metcalfe_2020_2]
parasitic (categorical): not_parasitic (1) [sources: White_2020]
pollination_syndrome (categorical): abiotic (1); insect (1); wind (2) [sources: Draper_2023; Metcalfe_2020_2; White_2020]
dispersal_syndrome (categorical): anemochory (3); epizoochory (1) [sources: Draper_2023; Lord_1997; Metcalfe_2020_2; White_2020]
dispersers (categorical): mammals (1); wind (2) [sources: Draper_2023; Lord_1997; White_2020]
flowering_time (categorical): ynnnnnnnnnny (1); yynnnnnnnnny (2) [sources: NHNSW_2014_2; NSWFRD_2014; White_2020]
seedbank_longevity_class (categorical): transient (1) [sources: White_2020]
vegetative_reproduction_ability (categorical): vegetative (2) [sources: Metcalfe_2020_2; White_2020]
clonal_spread_mechanism (categorical): belowground_clonal (1) [sources: Metcalfe_2020_2]
storage_organ (categorical): rhizome (1) [sources: NHNSW_2023]
bud_bank_location (categorical): basal_stem_buds (2); rhizome (1) [sources: Crowley_2007; Nano_2011; Simpson_2021]

seed morphology

seed_dry_mass (numerical): 1.9 mg (1.18-2.61 mg) [sources: Kew_2019_1; Lord_1997; Metcalfe_2020_2]

whole plant morphology

plant_height (numerical): 1.08 m (0.3-1.5 m) [sources: GrassBase_2014; NHNSW_2023; WAH_2023_2]
plant_physical_defence_structures (categorical): absent (2) [sources: Moles_2011; White_2020]

Sources

dataset_id	n_traits	n_records	reference
Metcalfe_2020_2	17	18	D. Metcalfe. “Unpublished data: Traits of Poaceae spp, CSIRO”. 2020.
White_2020	18	18	M. White, S. Sinclair, and D. Frood. Victorian Vital Attributes Database. database. Department of Environment, Land, Water and Planning, Victoria, 2020.
eFLOWER_Dun_2022	6	8	L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
Moles_2011	6	6	A. T. Moles, I. R. Wallis, W. J. Foley, D. I. Warton, J. C. Stegen, A. J. Bisigato, L. Cella-Pizarro, C. J. Clark, P. S. Cohen, W. K. Cornwell, W. Edwards, R. Ejrnaes, T. Gonzales-Ojeda, B. J. Graae, G. Hay, F. C. Lumbwe, B. Magana-Rodriguez, B. D. Moore, P. L. Peri, J. R. Poulsen, R. Veldtman, H. von Zeipel, N. R. Andrew, S. L. Boulter, E. T. Borer, F. F. Campon, M. Coll, A. G. Farji-Brener, J. D. Gabriel, E. Jurado, L. A. Kyhn, B. Low, C. P. H. Mulder, K. Reardon-Smith, J. Rodriguez-Velazquez, E. W. Seabloom, P. A. Vesk, A. van Cauter, M. S. Waldram, Z. Zheng, P. G. Blendinger, B. J. Enquist, J. M. Facelli, T. Knight, J. D. Majer, M. Martinez-Ramos, P. McQuillan, and L. D. Prior. “Putting plant resistance traits on the map: A test of the idea that plants are better defended at lower latitudes”. New Phytologist 191.3 (2011), pp. 777-788. doi: 10.1111/j.1469-8137.2011.03732.x.
GrassBase_2014	3	5	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.
NHNSW_2023	5	5	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2023. url: https://plantnet.rbgsyd.nsw.gov.au/.
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.
NHNSW_2022	4	4	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2022. url: https://plantnet.rbgsyd.nsw.gov.au/.
NSWFRD_2014	4	4	B. Kenny, C. Orscheg, E. Tasker, M. A. Gill, and R. Bradstock. NSW Flora Fire Response Database, v2.1. database. NSW Department of Planning Industry and Environment, 2014.
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.
Kew_2019_1	1	3	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
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/.
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.
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_2	1	1	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
NTH_2023	1	1	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/.
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.