Cyperus imbecillis

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Family Cyperaceae

Taxonomy: Cyperus imbecillis R.Br.

Synonyms: 2 (APC 2026-07-30)

Cyperus enervis var. laxus Benth. (taxonomic synonym)
Cyperus trinervis var. laxus (Benth.) Kük. (taxonomic synonym)

Distribution (APC): Qld, NSW

Profiles: APC, Flora of Australia, ALA, iNaturalist, NSW Flora, ATRP

Traits

Top source datasets: Metcalfe_2020_1 (3), NHNSW_2014_2 (2), NHNSW_2022 (3), NHNSW_2023 (10), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1), White_2020 (18). See below for a full list of sources.
Summary: AusTraits contains 31 traits from 43 records in 8 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): green (1); red_brown (1) [sources: NHNSW_2014_2]
sex_type (categorical): hermaphrodite (2) [sources: Metcalfe_2020_1; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 0.9 mm (0.8-1 mm) [sources: NHNSW_2023]
fruit_width (numerical): 0.75 mm (0.7-0.8 mm) [sources: NHNSW_2023]
fruit_height (numerical): 0.75 mm (0.7-0.8 mm) [sources: NHNSW_2023]
fruit_type (categorical): nut (2) [sources: NHNSW_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]
fruit_colour (categorical): brown (1) [sources: NHNSW_2023]

leaf morphology

leaf_width (numerical): 1.8 mm (1.4-2.2 mm) [sources: NHNSW_2023]
leaf_compoundness (categorical): simple (1) [sources: Metcalfe_2020_1]

life history

photosynthetic_pathway (categorical): c4 (1) [sources: White_2020]
plant_growth_form (categorical): graminoid (2); herb (1); tussock (1) [sources: NHNSW_2022; Wenk_2022; White_2020]
life_history (categorical): perennial (2) [sources: NHNSW_2022; Wenk_2023]
woodiness_detailed (categorical): herbaceous (2) [sources: NHNSW_2022; Wenk_2022]
nitrogen_fixing (categorical): non_nitrogen_fixer (1) [sources: White_2020]
parasitic (categorical): not_parasitic (1) [sources: White_2020]
pollination_syndrome (categorical): abiotic (1) [sources: White_2020]
dispersal_syndrome (categorical): hydrochory (1) [sources: White_2020]
dispersers (categorical): water (1) [sources: White_2020]
flowering_time (categorical): yynnnnnnyyyy (2) [sources: NHNSW_2014_2; White_2020]
seedbank_longevity_class (categorical): persistent (1) [sources: White_2020]
vegetative_reproduction_ability (categorical): not_vegetative (2) [sources: Metcalfe_2020_1; White_2020]

whole plant morphology

plant_physical_defence_structures (categorical): absent (1) [sources: White_2020]

Sources

dataset_id	n_traits	n_records	reference
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.
NHNSW_2023	6	10	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/.
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.
NHNSW_2022	3	3	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/.
NHNSW_2014_2	2	2	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.