Redlands plants- Angle-stemmed myrtle

Scientific name: Gossia gonoclada

Status

  • Queensland: Endangered (Nature Conservation Act 1992)
  • National: Endangered (Environment Protection and Biodiversity Conservation Act 1999)

What does it look like?

Angle-stemmed Myrtle grows to 18 metres and is naturally found in riverine rainforest areas. Its new leaves have a pink flush which grow into a glossy green and when crushed, give off an aromatic scent.

One of its distinguishing features is its branchlets with four raised edges. The bark is grey to brown and flaky. White flowers to 10mm occur in spring, followed by glossy-black, edible fruit.

Where is it found?

Angle-stemmed Myrtle has a limited range, being found only within a small area of South East Queensland. Species are known to be located in nine sites along the lower reaches of the Brisbane and Logan Rivers and tributaries. Some of these plants are naturally occurring and others have been planted in the last 20 years.

What is threatening it?

  • Human intrusion and disturbance
  • Vegetation clearing – clearing vegetation along and adjacent to waterways reduces available habitat for this plant and allows the introduction of weed species.
  • Weed invasion – introduced plants such as Lantana (Lantana camara), Privet (Ligustrum species), Camphor Laurel (Cinnamomum camphora) and Broad-leaf Pepper Tree (Schinus terebinthifolius) can invade areas and out-compete this endangered species.
  • Livestock damage – livestock may damage Gossia gonoclada and other support plants by grazing on them.  Soil disturbance in the immediate and surrounding areas (caused by the hooves of livestock) may create compaction and/or erosion, allowing weed invasion to occur.
  • Adjacent land use activities – activities on land adjacent to populations of this endangered plant can impact negatively on them, for example, agricultural spray drift, fertiliser run off and erosion.
  • Low genetic diversity – this reduces the ability of plant populations to survive and evolve in response to changes within their natural environment.
  • Myrtle rust: this plant is known to be highly susceptible to myrtle rust - a serious introduced fungal disease of plant species in the Myrtaceae family.

Conservation actions

Angle-stemmed Myrtle is protected under the Nature Conservation Act 1992 and the Environmental Protection and Biodiversity Conservation Act 1999. It is an offence to damage or interfere with Gossia gonoclada in any way other than when accepted by the respective Acts.

Redland City Council manages environmental weeds throughout the Redlands Coast to minimise their impact on native ecosystems and endangered plants such as Angle-stemmed Myrtle.

Did you know...?  

Angle-stemmed Myrtle comes from the Myrtaceae family, which is the same family as eucalypts, bottlebrushes and paperbarks.

How you can help

Manage environmental weeds on your property - see IndigiScapes’ brochure entitled Environmental Weeds of the Redlands [PDF, 5.0MB] or visit the centre for help identifying weeds and tips on how to remove them and stop them from spreading.

Record your sightings on the Atlas of Living Australia