The Spring Tiny Greenhood is a tuberous terrestrial orchid that grows to approximately 20 cm high. The species has relatively large flowers for the genus, up to 10 mm long and 4.5 mm wide. These flowers are green at the base with distinctive white stripes and dark brown to blackish towards the top. The species has a rosette of leaves which appear prior to flowering.
Halbury Rustyhood |
Pterostylis vernalis
Status: Critically Endangered on the EPBC Act list
Government evidence of impact of climate change:
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Australian Government, Conservation Advice, Pterostylis sp. Flat Rock Creek
The main potential threats to the Spring Tiny Greenhood include altered hydrological regimes; climate change; vehicle traffic; road works; illegal collection and trampling by people.
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Australian Government, Listing Advices, Pterostylis vernalis
The main potential threats to the species include altered hydrological regimes; climate change; vehicle traffic. road works; illegal collection and trampling by people.
Climate change may also have a significant impact on the species.
As this species is dependent on soil moisture; climate change will also reduce population numbers; although this may not occur in the immediate future.
Secondary impacts associated with development may include weed invasion; inappropriate fire regimes and altered hydrological regimes.
However; secondary impacts associated with the development such as weed invasion; inappropriate fire regimes and altered hydrological regimes are likely to result in population declines.
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