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Pterostylis atriola


Pterostylis atriolasnug greenhood

Group:Magnoliophyta (flowering plants), Liliopsida (monocots), Orchidales, Orchidaceae
Status:Threatened Species Protection Act 1995: rare
Environment Protection and Biodiversity Conservation Act 1999: Not listed
Found only in Tasmania
Click to enlarge

Key Points

  • Important: Is this species in your area? Do you need a permit? Ensure you’ve covered all the issues by checking the Planning Ahead page.
  • Important: Different threatened species may have different requirements. For any activity you are considering, read the Activity Advice pages for background information and important advice about managing around the needs of multiple threatened species.


    Key Survey reliability more info
    M Best time to survey
    M Potential time to survey
    M Poor time to survey
    M Non-survey period

    To ensure you follow the law - check whether your survey requires a permit. Always report any new records to the Natural Values Atlas, or send the information direct to the Threatened Species Section. Refer to the Activity Advice: Surveying page for background information.

    Pterostylis atriola Spring Summer Autumn Winter
    snug greenhood S S O O N N D D J J F F M M A A M M J J J J A A
  • Flowers are required for the identification and to aid detection of this ground orchid which dies back to subterranean tubers after flowering. Pterostylis atriola flowers between January and March, with a peak in February. It can be identified from fresh or fertilised flowers, perhaps as late as May at some sites, though survey may need to be postponed in drought years if the species does not emerge at nearby known sites. This species favours disturbed sites.
  • Pterostylis atriola occurs in the north and east of Tasmania on generally stony soil in dry to damp sclerophyll forest, typically with an open understorey. The species occurs at a range of elevations but is most strongly associated with winter cold sites (e.g. Snug Tiers) or areas receiving a moderately consistent rainfall (e.g. Wielangta, Railton).

Helping the species

Cutting or clearing trees or vegetation






Changing water flow / quality

Use of chemicals


Further information

​Check also for listing statement or notesheet pdf above (below the species image)​.

​​Cite as: Threatened Species Section (). (): Species Management Profile for Tasmania's Threatened Species Link. ​ ​Department of Natural Resources and Environment Tasmania. Accessed on .

Contact details: Threatened Species Section, Department of Natural Resources and Environment Tasmania​, GPO Box 44, Hobart, Tasmania, Australia, 7001. Phone (1300 368 550).

Permit: A permit is required under the Tasmanian Threatened Species Protection Act 1995 to 'take' (which includes kill, injure, catch, damage, destroy and collect), keep, trade in or process any specimen or products of a listed species. Additional permits may also be required under other Acts or regulations to take, disturb or interfere with any form of wildlife or its products, (e.g. dens, nests, bones). This may also depend on the tenure of the land and other agreements relating to its management. ​​​​​