Wollemi Mint-bush - 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: Prostanthera cryptandroides subsp. cryptandroides
Conservation status in NSW: Vulnerable
Commonwealth status: Vulnerable
Profile last updated: 01 Dec 2017

Description

A low-spreading shrub with a distinctive, pleasant aroma commonly growing 0.5 - 1 m tall and up to 1 m wide. The branches are moderately dense and are often black or obscured due to sooty mould. Leaves are light green, 5 - 9 mm long, 1 - 3 mm wide, and strongly aromatic. Flowers are lilac to mauve and occur from September to May.

Distribution

Distributed between Lithgow and Sandy Hollow on the NSW central west slopes, central tablelands and western parts of the central coast botanical regions. Populations occur in Wollemi National Park and Gardens of Stone National Park. A voucher specimen exists for the far northern tablelands near Tenterfield; however, this may represent subsp. euphrasioides.

Habitat and ecology

  • At Glen Davis, occurs in open forest dominated by Eucalyptus fibrosa. Other eucalypt species may be present as sub-dominants.
  • In the Denman-Gungal and Widden-Baerami Valley areas, occurs on rocky ridgelines on Narrabeen Group Sandstones in association with a range of communities.
  • Associated communities include: Narrabeen Rocky Heath, Narrabeen Acacia Woodland, Narrabeen Exposed Woodland; Open Heath of Calytrix tetragona, Leptospermum parviflorum and Isopogon dawsonii; and Open Scrubland of Eucalyptus dwyeri, Baeckea densifolia, Dillwynia floribunda, Aotus ericoides and Hemigenia cunefolia.
  • Individuals probably have a lifespan in the vicinity of 15 years or more.
  • Flowers from September to May; however is likely to flower sporadically at any time of the year depending on seasonal conditions.
  • Flowers possess pollination guides, suggesting it is insect-pollinated.
  • The species is fire-sensitive, with recruitment occurring from the soil seed bank.
  • Reproductive maturity is likely to occur at three to five years; does not appear to reproduce vegetatively.

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
New England TablelandsTenterfield Plateau Predicted None
NSW South Western SlopesCapertee Valley Known None
Other StateQLD Known None
South Eastern HighlandsCapertee Uplands Known None
Sydney BasinHunter Known None
Sydney BasinKerrabee Known None
Sydney BasinWollemi Known None