AusTraits

Petalostigma quadriloculare

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Family Picrodendraceae

Taxonomy: Petalostigma quadriloculare F.Muell.

Synonyms: 12 (APC 2026-07-30)
  • Hylococcus sericeus R.Br. ex T.Mitch. (taxonomic synonym)
  • Petalostigma australianum Baill. (pro parte taxonomic synonym)
  • Petalostigma haplocladum Pax & K.Hoffm. (taxonomic synonym)
  • Petalostigma humile W.Fitzg. (taxonomic synonym)
  • Petalostigma humilis W.Fitzg. (taxonomic synonym)
  • Petalostigma micrandrum Domin (taxonomic synonym)
  • Petalostigma quadriloculare F.Muell. var. quadriloculare (nomenclatural synonym)
  • Petalostigma quadriloculare var. genuina Müll.Arg. (taxonomic synonym)
  • Petalostigma quadriloculare var. pubescens Müll.Arg. (taxonomic synonym)
  • Petalostigma quadriloculare var. pubescens Pax & K.Hoffm. (taxonomic synonym)
  • Petalostigma quadriloculare var. sericeum Müll.Arg. (taxonomic synonym)
  • Xylococcus sericeus Britten & S.Moore (taxonomic synonym)

Distribution (APC): WA, NT, Qld

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

Traits

Top source datasets: Clarke_2015 (3), Crowley_2007 (2), Dong_2017 (8), Ilic_2000 (1), Kew_2019_1 (1), Kew_2019_6 (1), Lord_1997 (4), Munroe_2019 (1), NTH_2014 (4), NTH_2022 (2), NTH_2023 (23), Nano_2011 (2), Rice_1991 (1), RussellSmith_2012 (4), Schmidt_2003 (54), Schulze_1998 (9), Sjostrom_2006 (4), Sweedman_2006 (3), WAH_1998 (1), WAH_2022_2 (3), WAH_2023_2 (2), Wenk_2022 (2), Wenk_2023 (1), Wright_2000 (4), Wright_2008 (27), eFLOWER_Dun_2022 (25). See below for a full list of sources.
Summary: AusTraits contains 72 traits from 192 records in 26 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 (4) [sources: Clarke_2015; Crowley_2007; Nano_2011; RussellSmith_2012]
  • post_fire_recruitment (categorical): post_fire_recruitment_absent (1) [sources: Clarke_2015]
flower morphology
  • flower_colour (categorical): yellow_orange (1) [sources: eFLOWER_Dun_2022]
  • sex_type (categorical): dioecious (1) [sources: Sjostrom_2006]
fruit morphology
  • fruit_length (numerical): 16 mm (14-18 mm) [sources: NTH_2023]
  • fruit_width (numerical): 16 mm (14-18 mm) [sources: NTH_2023]
  • fruit_height (numerical): 16 mm (14-18 mm) [sources: NTH_2023]
  • fruit_type (categorical): capsule (2) [sources: NTH_2023; Sjostrom_2006]
  • fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
  • fruit_dehiscence (categorical): dehiscent (2) [sources: NTH_2023; Sjostrom_2006]
leaf morphology
life history
  • photosynthetic_pathway (categorical): c3 (2) [sources: Munroe_2019; Schmidt_2003]
  • plant_growth_form (categorical): shrub (7); subshrub (1); tree (1) [sources: Lord_1997; NTH_2022; Rice_1991; Schmidt_2003; Schulze_1998; WAH_2022_2; Wenk_2022]
  • life_history (categorical): perennial (4) [sources: Schmidt_2003; WAH_2022_2; Wenk_2023]
  • woodiness_detailed (categorical): woody (2) [sources: WAH_2022_2; Wenk_2022]
  • stem_growth_habit (categorical): erect (1) [sources: NTH_2022]
  • leaf_phenology (categorical): evergreen (3); facultative_drought_deciduous (1) [sources: NTH_2014; Schmidt_2003; Schulze_1998]
  • nitrogen_fixing (categorical): non_nitrogen_fixer (6) [sources: Dong_2017; Schmidt_2003; Schulze_1998; Wright_2008]
  • root_structure (categorical): arbuscular_mycorrhizal (2) [sources: Schmidt_2003]
  • dispersal_syndrome (categorical): myrmecochory (1) [sources: Lord_1997]
  • dispersers (categorical): ants (1) [sources: Lord_1997]
  • flowering_time (categorical): nnnnyyyyyyyn (1); nyyyyyyyyyyn (1) [sources: NTH_2014; WAH_1998]
  • seedbank_longevity_class (categorical): persistent (1) [sources: RussellSmith_2012]
  • bud_bank_location (categorical): basal_stem_buds (2); epicormic_buds (1) [sources: Clarke_2015; Crowley_2007; Nano_2011]
nutrient and stable isotope
  • leaf_N_per_dry_mass (numerical): 6.3 mg/g (4-10 mg/g) [sources: Dong_2017; Schmidt_2003; Schulze_1998; Wright_2008]
  • leaf_P_per_dry_mass (numerical): 0.23 mg/g (0.18-0.28 mg/g) [sources: Wright_2008]
  • leaf_delta13C (numerical): -28.16 {delta}[ppth] (-29.85--27.05 {delta}[ppth]) [sources: Dong_2017; Schmidt_2003; Schulze_1998]
seed morphology
  • seed_dry_mass (numerical): 27.26 mg (21.31-33.2 mg) [sources: Kew_2019_1; Lord_1997]
  • seed_shape (categorical): ellipsoid_flattened (1) [sources: NTH_2023]
stem morphology
  • wood_density (numerical): 0.81 mg/mm3 (0.72-0.91 mg/mm3) [sources: Ilic_2000; Wright_2008]
whole plant morphology
  • plant_height (numerical): 1 m (0.5-1.5 m) [sources: NTH_2023; WAH_2023_2]

Sources

dataset_idn_traitsn_recordsreference
Schmidt_20031154S. Schmidt and G. R. Stewart. “d15N values of tropical savanna and monsoon forest species reflect root specialisations and soil nitrogen status”. Oecologia 134 (2003), pp. 569-577. doi: 10.1007/s00442-002-1150-y.
Wright_2008927I. J. Wright. “Unpublished data: Trait data for Northern Territory savanna species, Macquarie University”. 2008.
eFLOWER_Dun_20221525L. Dun and H. Sauquet. “Unpublished: Floral traits for GAP taxa, University of New South Wales, Australia”. 2022.
NTH_20231723D. 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/.
Schulze_199889E. -. Schulze, R. J. Williams, G. D. Farquhar, W. Schulze, J. Langridge, J. M. Miller, and B. H. Walker. “Carbon and nitrogen isotope discrimination and nitrogen nutrition of trees along a rainfall gradient in northern Australia”. Australian Journal of Plant Physiology 25.4 (1998), pp. 413-425. doi: 10.1071/PP97113.
Dong_201788N. Dong, I. C. Prentice, B. J. Evans, S. Caddy-Retalic, A. J. Lowe, and I. J. Wright. “Leaf nitrogen from first principles: field evidence for adaptive variation with climate”. Biogeosciences 14.2 (2017), pp. 481-495. doi: 10.5194/bg-14-481-2017.
Lord_199744J. Lord, J. Egan, T. Clifford, E. Jurado, M. Leishman, D. Williams, and M. Westoby. “Larger seeds in tropical floras: Consistent patterns independent of growth form and dispersal mode”. Journal of Biogeography 24 (1997), pp. 205-211. doi: 10.1046/j.1365-2699.1997.00126.x.
NTH_201444Northern Territory Herbarium. Flora of the Darwin Region Online. 2014. url: http://www.lrm.nt.gov.au/plants-and-animals/herbarium/darwin_flora_online.
RussellSmith_201244J. 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_200644A. 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.
Wright_200044I. 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.
Clarke_201533P. J. Clarke, M. J. Lawes, B. P. Murphy, J. Russell-Smith, C. E. Nano, R. Bradstock, N. J. Enright, J. B. Fontaine, C. R. Gosper, I. Radford, J. J. Midgley, and R. M. Gunton. “A synthesis of postfire recovery traits of woody plants in Australian ecosystems”. Science of The Total Environment 534 (2015), pp. 31-42. doi: 10.1016/j.scitotenv.2015.04.002.
Sweedman_200613L. Sweedman and D. Merritt. Australian Seeds: A Guide to Their Collection, Identification, and Biology. CSIRO Publishing, 2006. ISBN: 9780643094079.
WAH_2022_233Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2022. url: https://florabase.dpaw.wa.gov.au/.
Crowley_200722G. Crowley, M. Gardener, and M. Marrinan. Tropical savannas fire response database. 2007. url: [www.landmanager.org.au](www.landmanager.org.au).
NTH_202222D. 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/.
Nano_201122C. 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.
WAH_2023_212Western Australian Herbarium. Florabase—the Western Australian Flora.. accessed on 14 September, 2022.. 2023. url: https://florabase.dpaw.wa.gov.au/.
Wenk_202222E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Ilic_200011J. Ilic, D. Boland, M. McDonald, D. G, and P. Blakemore. Woody density phase 1 - State of knowledge. National Carbon Accounting System. Technical Report 18. Tech. rep. Australian Greenhouse Office, Canberra, Australia, 2000.
Kew_2019_111Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Kew_2019_611Royal Botanic Gardens Kew. Germination data from the Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
Munroe_201911S. E. M. Munroe, F. A. McInerney, J. Andrae, N. Welti, G. R. Guerin, E. Leitch, T. Hall, S. Szarvas, R. Atkins, S. Caddy-Retalic, and B. Sparrow. “The Photosynthetic Pathways of Plant Species Surveyed in Australia's National Terrestrial Monitoring Network”. Scientific Data 8 (2021), p. 97. doi: 10.1038/s41597-021-00877-z.
Rice_199111B. Rice. “Unpublished data: Growth form of Kakadu plant species, Macquarie University”. 1991.
WAH_199811Western Australian Herbarium. FloraBase: The Western Australian flora. 1998. url: http://florabase.dpaw.wa.gov.au.
Wenk_202311E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.