Nature conservation

Threatened species

Diuris bracteata - profile

Indicative distribution


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Key:
known
predicted
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: Diuris bracteata
Conservation status in NSW: Endangered
Commonwealth status: Extinct
Gazetted date: 21 Oct 2005
Profile last updated: 18 Nov 2019

Description

Diuris bracteata is a terrestrial ‘donkey’ orchid with yellow flowers with blackish markings. The petals of the flowers (above the centre of the flower) are widely spaced and look somewhat like donkey ears. The lateral sepals (below the centre of the flower) are 9 mm long and 1.5 mm wide and turn abruptly downward and are crossed over. Flowers have been recorded from August to September.

Distribution

For over 100 years Diuris bracteata was known only from the original collection made near Gladesville in northern Sydney.

In recent years plants of Diuris platichila from Duffy's Forest, Mount White and Kulnura were misidentified as Diuris bracteata (Peter Weston May 2013). 

The complete absence of records for most of the 20th Century resulted in this species being listed as 'presumed extinct' on Part 4 of Schedule 1 of the Biodiversity Conservation Act.  

Habitat and ecology

  • Dry sclerophyll woodland and forest with a predominantly grassy understorey.

Regional distribution and habitat

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


Threats

Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Sydney BasinPittwater Known None
Sydney BasinWyong Known None