Nature conservation

Threatened species

Isoglossa - profile

Indicative distribution

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The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Isoglossa eranthemoides
Conservation status in NSW: Endangered
Commonwealth status: Endangered
Profile last updated: 21 Nov 2018


Isoglossa is a herb that grows to 50 cm tall. Its paired leaves are oval or more elongated and 2 – 16 cm long. The white-petalled flowers are about 12 mm across, and are borne in clusters towards the tops of the stems. The five petals are of three kinds: two are erect, two droop to the sides and a central tube-like structure has three lobes. The capsules are up to 12 mm long, and tapered at each end to form an elongated diamond shape. They spring open, expelling seeds explosively.


A very restricted distribution in north-east NSW from the Tweed to the Lismore area, with a single uncertain historical report from south-east Queensland.

Habitat and ecology

  • Understorey of lowland subtropical rainforest, in moist situations on floodplains and slopes.
  • Underlying soils are derived from basalt, metasediments or gabbro.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
South Eastern QueenslandBurringbar-Conondale Ranges Known None
South Eastern QueenslandScenic Rim Known None
South Eastern QueenslandSunshine Coast-Gold Coast Lowlands Predicted None