Oryza meridionalis

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Family Poaceae

Taxonomy: Oryza meridionalis N.Q.Ng

Misapplied names: 4 (APC 2026-07-30)

Oryza australiensis Domin (pro parte misapplied)
Oryza rufipogon Griff. (misapplied)
Oryza sativa L. (pro parte misapplied)
Oryza sativa var. fatua Prain (misapplied)

Distribution (APC): WA, NT, Qld

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

Traits

Top source datasets: ABRS_2022 (4), ABRS_2023 (9), GrassBase_2014 (8), Kew_2019_1 (1), Metcalfe_2020_2 (20), NTH_2022 (3), NTH_2023 (11), Osborne_2014 (1), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 29 traits from 64 records in 11 datasets.

Traits by category (click to expand). For categorical traits, the values are listed. For numerical traits, the mean and range are shown.

flower morphology

sex_type (categorical): gynomonoecious (1); hermaphrodite (1) [sources: Metcalfe_2020_2; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 6.55 mm (5.5-8.3 mm) [sources: ABRS_2023; Metcalfe_2020_2; NTH_2023]
fruit_width (numerical): 2 mm (2-2 mm) [sources: NTH_2023]
fruit_height (numerical): 2 mm (2-2 mm) [sources: NTH_2023]
fruit_type (categorical): caryopsis (4) [sources: ABRS_2023; Metcalfe_2020_2; NTH_2023; 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]
fruit_colour (categorical): brown (1); red (1) [sources: NTH_2023]

leaf morphology

leaf_area (numerical): 1512 mm2 (1512-1512 mm2) [sources: Metcalfe_2020_2]
leaf_length (numerical): 275 mm (60-600 mm) [sources: ABRS_2023; GrassBase_2014; Metcalfe_2020_2; NTH_2023]
leaf_width (numerical): 9.5 mm (4-14 mm) [sources: ABRS_2023; GrassBase_2014; NTH_2023]
leaf_shape (categorical): linear (1) [sources: NTH_2023]
leaf_compoundness (categorical): simple (1) [sources: Metcalfe_2020_2]
leaf_phyllotaxis (categorical): alternate (1) [sources: ABRS_2023]
plant_photosynthetic_organ (categorical): leaf (2) [sources: ABRS_2023; NTH_2023]

life history

photosynthetic_pathway (categorical): c3 (2) [sources: Metcalfe_2020_2; Osborne_2014]
plant_growth_form (categorical): graminoid (2); herb (2); tussock (2) [sources: ABRS_2022; Metcalfe_2020_2; NTH_2022; Wenk_2022]
life_form (categorical): hemicryptophyte (1); therophyte (1) [sources: Metcalfe_2020_2]
life_history (categorical): annual (3); perennial (3) [sources: ABRS_2022; NTH_2022; Wenk_2023]
woodiness_detailed (categorical): herbaceous (3) [sources: ABRS_2022; NTH_2022; Wenk_2022]
stem_growth_habit (categorical): caespitose (1) [sources: ABRS_2022]
root_structure (categorical): non_mycorrhizal (1) [sources: Metcalfe_2020_2]
pollination_syndrome (categorical): wind (1) [sources: Metcalfe_2020_2]
dispersal_syndrome (categorical): anemochory (1) [sources: Metcalfe_2020_2]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: Metcalfe_2020_2]

seed morphology

seed_dry_mass (numerical): 1.53 mg (1.53-1.53 mg) [sources: Kew_2019_1; Metcalfe_2020_2]
seed_length (numerical): 6.2 mm (6-6.4 mm) [sources: GrassBase_2014]

whole plant morphology

plant_height (numerical): 2.25 m (1-3 m) [sources: GrassBase_2014; Metcalfe_2020_2]

Sources

dataset_id	n_traits	n_records	reference
Metcalfe_2020_2	18	20	D. Metcalfe. “Unpublished data: Traits of Poaceae spp, CSIRO”. 2020.
NTH_2023	9	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/.
ABRS_2023	6	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.
ABRS_2022	4	4	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2022. url: http://www.ausflora.org.au.
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.
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/.
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/.
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.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.