Hydrocharis dubia

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Family Hydrocharitaceae

Taxonomy: Hydrocharis dubia (Blume) Backer

Synonyms: 3 (APC 2026-07-30)

Limnobium dubium (Blume) Shaffer-Fehre (nomenclatural synonym)
Monochoria dubia (Blume) Miq. (nomenclatural synonym)
Pontederia dubia Blume (nomenclatural synonym)

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

Hydrocharis morsus-ranae L. (misapplied)

Distribution (APC): Qld, NSW

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

Traits

Top source datasets: ABRS_2022 (4), ABRS_2023 (13), NHNSW_2014_2 (4), NHNSW_2022 (6), NHNSW_2023 (11), Sjostrom_2006 (4), Stephens_2023 (1), Wenk_2022 (2), Wenk_2023 (1), eFLOWER_2021 (25), eFLOWER_Dun_2022 (28). See below for a full list of sources.
Summary: AusTraits contains 50 traits from 99 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

flower_colour (categorical): green (1); white_cream (1); yellow_orange (1) [sources: NHNSW_2014_2]
flower_diameter (numerical): 2.5 cm (2-3 cm) [sources: eFLOWER_Dun_2022]
sex_type (categorical): monoecious (1); trioecious (1) [sources: NHNSW_2022; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 7.5 mm (5-10 mm) [sources: ABRS_2023; NHNSW_2023]
fruit_type (categorical): berry (1) [sources: Sjostrom_2006]
fruit_fleshiness (categorical): fleshy (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (2); indehiscent (1) [sources: ABRS_2023; NHNSW_2023; Sjostrom_2006]

leaf morphology

leaf_length (numerical): 50 mm (20-60 mm) [sources: ABRS_2023; NHNSW_2023]
petiole_length (numerical): 10.75 cm (5-14 cm) [sources: ABRS_2023; NHNSW_2023]
leaf_shape (categorical): orbicular (2); reniform (2); widely_ovate (2) [sources: ABRS_2023; NHNSW_2023]
leaf_base_shape (categorical): cordate (2); truncate (2) [sources: ABRS_2023; NHNSW_2023]
leaf_margin (categorical): entire (1) [sources: NHNSW_2014_2]
leaf_compoundness (categorical): simple (1) [sources: NHNSW_2014_2]
plant_photosynthetic_organ (categorical): leaf (2) [sources: ABRS_2023; NHNSW_2023]

life history

plant_growth_form (categorical): herb (3) [sources: ABRS_2022; NHNSW_2022; Wenk_2022]
life_history (categorical): perennial (3) [sources: ABRS_2022; NHNSW_2022; Wenk_2023]
plant_growth_substrate (categorical): aquatic (2) [sources: ABRS_2022; NHNSW_2022]
woodiness_detailed (categorical): herbaceous (3) [sources: ABRS_2022; NHNSW_2022; Wenk_2022]
stem_growth_habit (categorical): floating (1) [sources: NHNSW_2022]
pollination_syndrome (categorical): insect (1) [sources: Stephens_2023]
flowering_time (categorical): yynnnnnnnnny (1) [sources: NHNSW_2014_2]

seed morphology

seed_length (numerical): 1.25 mm (1-1.5 mm) [sources: ABRS_2023; NHNSW_2023]

Sources

dataset_id	n_traits	n_records	reference
eFLOWER_Dun_2022	19	28	L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
eFLOWER_2021	22	25	J. Schönenberger, M. Balthazar, A. L. Martinez, B. Albert, C. Prieu, S. Magallon, and H. Sauquet. “Phylogenetic analysis of fossil flowers using an angiosperm-wide data set: proof-of-concept and challenges ahead”. American Journal of Botany 107.10 (2020), pp. 1433-1448. doi: 10.1002/ajb2.1538.
ABRS_2023	9	13	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
NHNSW_2023	9	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/.
NHNSW_2022	6	6	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/.
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.
NHNSW_2014_2	4	4	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://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.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Stephens_2023	1	1	R. E. Stephens, R. V. Gallagher, L. Dun, W. Cornwell, and H. Sauquet. “Insect pollination for most of angiosperm evolutionary history”. New Phytologist 240.2 (2023), pp. 880-891. ISSN: 1469-8137. doi: 10.1111/nph.18993.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.