Skip links and keyboard navigation

Species profile—Homoranthus decasetus

Classification

Plantae (plants) → Equisetopsida (land plants) → MyrtaceaeHomoranthus decasetus

Sighting data

Download
KML | CSV | GeoJson

Species details

Kingdom
Plantae (plants)
Class
Equisetopsida (land plants)
Family
Myrtaceae
Scientific name
Homoranthus decasetus Byrnes
WildNet taxon ID
13455
Nature Conservation Act 1992 (NCA) status
Least concern
Back on Track (BoT) status
Low
Conservation significant
No
Confidential
No
Endemicity
Native
Pest status
Nil
Short Notes
BRI 222997, status annotated by author
Description
Homoranthus decasetus is a shrub to 2 m high. The leaves are opposite, shortly petiolate, clavate, terete, falcate and shortly apiculate; to 12 mm long and about 1mm wide. They are punctate (though barely visible to the naked eye). The flowers are solitary at the tips of the short axillary branches. The bracteoles are 3mm long, enclosing the young flower buds and each with a keel ending in a short point, caducous. The calyx tube is urceolate and strongly 5 ribbed below the middle. The calyx lobes each with 2 (rarely 3) subulate processes to 4 mm long. The petals are orbicular, about 2 mm diam. The 10 stamens and staminodes alternate, and are about 1 mm long, connate below and attached to the base of the calyx lobes. Style 14 to 18 mm long. The ovary about 2 mm long, unilocular with 8 ovules on a secund placenta. The fruit are dry, similar to the flower but slightly enlarged and containing a single winged seed.
The flowers of this species are distinct from those of other members of the genus by being noticeably constricted above the middle, having two processes on each calyx lobe and by being borne singly and erectly at the end of short branchlets. Exposure to the sun causes the flowers to change from white to red. (Byrnes, 1981; Copeland, 2011).
Distribution
Homoranthus decasetus is known from restricted area in central Queensland, from the vicinity of Planet Downs, to Isla Gorge, and west towards Carnarvon National Park. It has been recorded from Isla Gorge Palm Grove, Expedition and Carnarvon National Parks (Queensland Herbarium 2012).
Distributional limits
-24.4067533, 148.4177886
-25.3067545, 149.9594333
Range derivation
Range derived from extent of the taxon's verified records
Habitat
This species occurs in eucalypt woodlands with shrubby understorey on steep slopes, cliffs, rocky ledges and gullies with skeletal sandy soil derived from sandstone. Associated tree species can include: Corymbia watsoniana, C. citriodora, C. bunites, E. tenuipes, E. fibrosa, , E. apothalassica and Lysicarpus angustifolius. (Queensland Herbarium 2012).
Reproduction
Homoranthus decasetus flowers and fruits sporadically throughout the year. (Copeland 2011).
Status notes
Homoranthus decasetus is listed as Near Threatened under the Queensland Nature Conservation Act 1992
Notes
Occurs in the following Queensland pastoral district: Leichhardt.
References
Byrnes, N. (1981). Notes on the genus Homoranthus. Austrobaileya 1 (4): 374.
Copeland, L.M., Craven, L.A. and Bruhl, J.J. (2011). A taxonomic review of Homoranthus (Myrtaceae: Chamelaucieae). Australian Systematic Botany 24 (6): 351-374.
Queensland Herbarium (2012). Specimen label information. Queensland Herbarium. Accessed 12/03/2012.
Profile author
Ronald Booth (19/03/2012)

Other resources

The Australasian Virtual Herbarium (AVH)
Atlas of Living Australia

Data source

This profile data is sourced from the QLD Wildlife Data API using the Get species by ID function used under CC-By 4.0
https://apps.des.qld.gov.au/species/?op=getspeciesbyid&taxonid=13455

This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.

More species information

Get a list of species for your area or find other wildlife information.

Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
7 September 2021
  1. Is your feedback about:
  2. (If you chose ‘website’ above)

    Page feedback

    1. How satisfied are you with your experience today? *
  3. (If you chose ‘service’ above)

    Feedback on government services, departments and staff

    Please use our complaints and compliments form.