Gyrostemon sessilis

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Family Gyrostemonaceae

Taxonomy: Gyrostemon sessilis A.S.George

Synonyms: 1 (APC 2026-07-30)

Gyrostemon sp. Ravensthorpe (G.Cockerton & N.Evelegh 9467) WA Herbarium (taxonomic synonym)

Distribution (APC): WA

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

Traits

Top source datasets: ABRS_2022 (3), ABRS_2023 (12), Barrett_2009 (8), Kew_2019_1 (1), Sjostrom_2006 (2), 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 22 traits from 34 records in 9 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): fire_killed (2) [sources: Barrett_2009]
post_fire_recruitment (categorical): post_fire_recruitment (2) [sources: Barrett_2009]

flower morphology

sex_type (categorical): dioecious (2) [sources: ABRS_2022; Sjostrom_2006]

fruit morphology

fruit_dehiscence (categorical): dehiscent (1) [sources: Sjostrom_2006]

leaf morphology

leaf_length (numerical): 5.5 mm (3-8 mm) [sources: ABRS_2023]
leaf_shape (categorical): strap-shaped (1) [sources: ABRS_2023]
leaf_margin (categorical): entire (1) [sources: ABRS_2023]
leaf_compoundness (categorical): simple (1) [sources: ABRS_2023]
leaf_phyllotaxis (categorical): alternate (1) [sources: ABRS_2023]
leaf_arrangement (categorical): scattered (1) [sources: ABRS_2023]
plant_photosynthetic_organ (categorical): leaf (1) [sources: ABRS_2023]

life history

plant_growth_form (categorical): shrub (3) [sources: ABRS_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (2) [sources: WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): woody (3) [sources: ABRS_2022; WAH_2022_2; Wenk_2022]
reproductive_maturity (numerical): 1 a (1-1 a) [sources: Barrett_2009]
seedbank_location (categorical): soil_seedbank (2) [sources: Barrett_2009]

seed morphology

seed_dry_mass (numerical): 0.77 mg (0.77-0.77 mg) [sources: Kew_2019_1]
seed_length (numerical): 1.5 mm (1.5-1.5 mm) [sources: ABRS_2023]
seed_shape (categorical): ovoid_elongated (1) [sources: ABRS_2023]

whole plant morphology

plant_height (numerical): 1.58 m (0.8-2.5 m) [sources: ABRS_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
ABRS_2023	11	12	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2023. url: http://www.ausflora.org.au.
Barrett_2009	5	8	S. Barrett, S. Comer, N. McQuoid, M. Porter, C. Tiller, and D. Utber. Identification and Conservation of Fire Sensitive Ecosystems and Species of the South Coast Natural Resource Management Region.. government. Department of Conservation and Land Management, South Coast Region, Western Australia, 2009.
ABRS_2022	3	3	Australian Biological Resources Study. Flora of Australia, Australian Biological Resources Study, Canberra.. accessed on 14 September, 2022.. 2022. url: http://www.ausflora.org.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/.
Sjostrom_2006	2	2	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.
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.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.