Xanthostemon umbrosus

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Family Myrtaceae

Taxonomy: Xanthostemon umbrosus (A.Cunn. ex Lindl.) Peter G.Wilson & J.T.Waterh.

Synonyms: 4 (APC 2026-07-30)

Metrosideros tetrapetala F.Muell. (taxonomic synonym)
Nani tetrapetala (F.Muell.) Kuntze (taxonomic synonym)
Nania tetrapetala Kuntze (taxonomic synonym)
Tristania umbrosa A.Cunn. (nomenclatural synonym)

Distribution (APC): WA, NT, Qld

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

Traits

Top source datasets: Brock_1993 (11), Cooper_2013 (13), Crowley_2007 (2), Gross_2005 (4), Kew_2019_1 (1), Kooyman_2011 (13), NTH_2014 (3), NTH_2022 (3), NTH_2023 (18), Nano_2011 (2), RussellSmith_2012 (4), Sjostrom_2006 (4), WAH_1998 (1), WAH_2022_2 (3), WAH_2023_2 (1), Wenk_2022 (2), Wenk_2023 (1), Wright_2000 (1). See below for a full list of sources.
Summary: AusTraits contains 32 traits from 87 records in 18 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): resprouts (3) [sources: Crowley_2007; Nano_2011; RussellSmith_2012]

flower morphology

sex_type (categorical): hermaphrodite (2) [sources: Gross_2005; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 9 mm (7-12 mm) [sources: Cooper_2013; NTH_2023]
fruit_width (numerical): 9.5 mm (7-14 mm) [sources: Cooper_2013; NTH_2023]
fruit_height (numerical): 8 mm (7-9 mm) [sources: NTH_2023]
fruit_type (categorical): capsule (4) [sources: Cooper_2013; Gross_2005; NTH_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (3) [sources: Cooper_2013; Gross_2005; Sjostrom_2006]
fruit_dehiscence (categorical): dehiscent (3) [sources: Cooper_2013; Gross_2005; Sjostrom_2006]

leaf morphology

leaf_length (numerical): 67.5 mm (40-105 mm) [sources: Brock_1993; Kooyman_2011; NTH_2023]
leaf_width (numerical): 32.67 mm (20-45 mm) [sources: Brock_1993; Kooyman_2011; NTH_2023]
petiole_length (numerical): 0.6 cm (0.2-1 cm) [sources: NTH_2023]
leaf_shape (categorical): elliptical (2) [sources: Brock_1993; NTH_2023]
leaf_base_shape (categorical): attenuate (1) [sources: NTH_2023]
leaf_lobation (categorical): unlobed (1) [sources: Kooyman_2011]
leaf_compoundness (categorical): simple (2) [sources: Brock_1993; Kooyman_2011]
leaf_arrangement (categorical): decussate (1) [sources: NTH_2023]
plant_photosynthetic_organ (categorical): leaf (1) [sources: NTH_2023]

life history

plant_growth_form (categorical): tree (6) [sources: Brock_1993; Cooper_2013; Kooyman_2011; NTH_2022; WAH_2022_2; Wenk_2022]
life_history (categorical): perennial (4) [sources: Brock_1993; NTH_2022; WAH_2022_2; Wenk_2023]
woodiness_detailed (categorical): woody (3) [sources: NTH_2022; WAH_2022_2; Wenk_2022]
leaf_phenology (categorical): evergreen (3) [sources: Brock_1993; Kooyman_2011; NTH_2014]
flowering_time (categorical): nnnnyynnnnnn (1); nnynnnnnnnnn (1); yyynnnnnnnny (1); yyyyyyynnnyy (1) [sources: Brock_1993; Cooper_2013; NTH_2014; WAH_1998]
seedbank_longevity_class (categorical): persistent (1) [sources: RussellSmith_2012]
bud_bank_location (categorical): basal_stem_buds (2); bud-bearing_root (2); rhizome (2) [sources: Crowley_2007; Nano_2011]

seed morphology

seed_dry_mass (numerical): 7.66 mg (7.66-7.66 mg) [sources: Kew_2019_1]
seed_length (numerical): 5 mm (5-5 mm) [sources: Cooper_2013; Kooyman_2011]
seed_width (numerical): 3.5 mm (3-4 mm) [sources: Kooyman_2011]

whole plant morphology

plant_height (numerical): 12.6 m (5-17 m) [sources: Brock_1993; Cooper_2013; Kooyman_2011; NTH_2023; WAH_2023_2]

Sources

dataset_id	n_traits	n_records	reference
NTH_2023	12	18	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/.
Cooper_2013	10	13	W. Cooper and W. T. Cooper. Australian rainforest fruits. CSIRO Publishing, 2013, p. 272.
Kooyman_2011	9	13	R. Kooyman, M. Rossetto, W. Cornwell, and M. Westoby. “Phylogenetic tests of community assembly across regional to continental scales in tropical and subtropical rain forests”. Global Ecology and Biogeography 20 (2011), pp. 707-716. doi: 10.1111/j.1466-8238.2010.00641.x.
Brock_1993	9	11	J. Brock and A. Dunlop. Native plants of northern Australia. Reed New Holland, 1993. ISBN: 9781877069246.
Gross_2005	4	4	C. L. Gross. “A comparison of the sexual systems in the trees from the Australian tropics with other tropical biomes-more monoecy but why?”. American Journal of Botany 92.6 (2005), pp. 907-919. doi: 10.3732/ajb.92.6.907.
RussellSmith_2012	4	4	J. Russell-Smith, M. R. Gardener, C. Brock, K. Brennan, C. P. Yates, and B. Grace. “Fire persistence traits can be used to predict vegetation response to changing fire regimes at expansive landscape scales - an Australian example”. Journal of Biogeography 39 (2012), pp. 1657-1668. doi: 10.1111/j.1365-2699.2012.02714.x.
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_2014	3	3	Northern Territory Herbarium. Flora of the Darwin Region Online. 2014. url: http://www.lrm.nt.gov.au/plants-and-animals/herbarium/darwin_flora_online.
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/.
Crowley_2007	2	2	G. Crowley, M. Gardener, and M. Marrinan. Tropical savannas fire response database. 2007. url: [www.landmanager.org.au](www.landmanager.org.au).
Nano_2011	2	2	C. E. M. Nano and P. J. Clarke. “How do drought and fire influence the patterns of resprouting in Australian deserts?”. Plant Ecology 212 (2011), pp. 2095-2110. doi: 10.1007/s11258-011-9988-x.
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/.
WAH_1998	1	1	Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://florabase.dpaw.wa.gov.au.
WAH_2023_2	1	1	Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. url: https://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.
Wright_2000	1	1	I. J. Wright, H. T. Clifford, R. Kidson, M. L. Reed, B. L. Rice, and M. Westoby. “A survey of seed and seedling characters in 1744 Australian dicotyledon species: Cross-species trait correlations and correlated trait-shifts within evolutionary lineages”. Biological Journal of the Linnean Society 69 (2000), pp. 521-547. doi: 10.1111/j.1095-8312.2000.tb01222.x.