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Thelymitra improcera


Thelymitra improceracoast sun-orchid

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

​​Thelymitra improcera is a deciduous terrestrial orchid known in Tasmania from just a few sites on King Island, all restricted to an area of about one square kilometre. While abundance data is scarce, it is likely that the species occupies less than 1 ha and consists of fewer than 250 individuals, putting the species at a high risk of local extinctions due to the small size of sites. The species grows within a few kilometres of the coast on peaty or sandy loams in heathland or woodland, as well as dry scrub. Vegetation clearance represents the main threat to the species, additional threats including a lack of disturbance, stochastic events and climate change.

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.


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. ​​​​​