Fimbristylis tristachya

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Family Cyperaceae

Taxonomy: Fimbristylis tristachya R.Br.

Synonyms: 9 (APC 2026-07-30)

Fimbristylis ferruginea var. tristachya (R.Br.) Domin (nomenclatural synonym)
Fimbristylis macrostachya Boeckeler (taxonomic synonym)
Fimbristylis subbulbosa Benth. (taxonomic synonym)
Iria macrostachya (Boeckeler) Kuntze (taxonomic synonym)
Iria subbulbosa (Benth.) Kuntze (taxonomic synonym)
Iriha macrostachya Kuntze (taxonomic synonym)
Iriha subbulbosa Kuntze (taxonomic synonym)
Scirpus tristachya Poir. (nomenclatural synonym)
Scirpus tristachyus (R.Br.) Poir. (nomenclatural synonym)

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

Fimbristylis schoenoides (Retz.) Vahl (misapplied)

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

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

Traits

Top source datasets: Metcalfe_2020_1 (3), NHNSW_2014_2 (4), NHNSW_2022 (4), NHNSW_2023 (11), NTH_2022 (3), NTH_2023 (8), Sjostrom_2006 (4), WAH_1998 (1), WAH_2022_2 (3), WAH_2023_2 (2), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 21 traits from 46 records in 12 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

flower_colour (categorical): red_brown (1); yellow_orange (1) [sources: NHNSW_2014_2]
sex_type (categorical): hermaphrodite (2) [sources: Metcalfe_2020_1; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1.38 mm (1.1-1.8 mm) [sources: NHNSW_2023; NTH_2023]
fruit_width (numerical): 1.02 mm (0.7-1.3 mm) [sources: NHNSW_2023; NTH_2023]
fruit_height (numerical): 1 mm (0.7-1.3 mm) [sources: NHNSW_2023]
fruit_type (categorical): nut (3) [sources: NHNSW_2023; NTH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]
fruit_colour (categorical): brown (1); white (1); yellow (1) [sources: NHNSW_2023; NTH_2023]

leaf morphology

leaf_width (numerical): 1 mm (0.5-1.5 mm) [sources: NHNSW_2023]
leaf_margin (categorical): entire (1) [sources: NHNSW_2014_2]
leaf_compoundness (categorical): simple (1) [sources: NHNSW_2014_2]

life history

photosynthetic_pathway (categorical): c4 (1) [sources: Metcalfe_2020_1]
plant_growth_form (categorical): graminoid (4); herb (3) [sources: NHNSW_2022; NTH_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (4) [sources: NHNSW_2022; NTH_2022; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): herbaceous (4) [sources: NHNSW_2022; NTH_2022; WAH_2022_2; Wenk_2022]
stem_growth_habit (categorical): rhizomatous (1) [sources: NHNSW_2022]
flowering_time (categorical): nnnnyynnnnnn (1); yynnnnnnyyyy (1) [sources: NHNSW_2014_2; WAH_1998]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: Metcalfe_2020_1]
storage_organ (categorical): rhizome (2) [sources: NHNSW_2023; NTH_2023]

whole plant morphology

plant_height (numerical): 0.75 m (0.2-1 m) [sources: NTH_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
NHNSW_2023	7	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 6 May, 2022.. 2023. url: https://plantnet.rbgsyd.nsw.gov.au/.
NTH_2023	6	8	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	4	4	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
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/.
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.
Metcalfe_2020_1	3	3	D. Metcalfe. “Unpublished data: Database of Cyperaceae traits, CSIRO”. 2020.
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	1	2	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. url: https://florabase.dpaw.wa.gov.au/.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
WAH_1998	1	1	Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://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.