Pterostylis setulosa

Pterostylis setulosa (D.L.Jones & C.J.French) D.L.Jones & C.J.French

Pterostylis sp. 'Inland'; Diplodium setulosum

Hairy Stemmed Snail Orchid

Pterostylis nana (Snail Orchids)

David Jones & Christopher French in Australian Orchid Review 84(1): 30-32, Fig. 5 (2019) as Diplodium setulosum

Nerren Nerren Station to Israelite Bay with a disjunct population on Mount Augustus, growing in sandy, sandy-clay and granitic soils in woodlands and shrublands. The species is especially common in shallow soil pockets on inland granite outcrops. Also occurs in South Australia and the western part of New South Wales.

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A common inland species 50–250 mm high with five to seven leaves forming a ground-hugging basal rosette 24–44 mm across, one to four cauline leaves and one (rarely two) translucent, green and white flowers 5–8 mm across.

It is distinguished from the related Hairy-leafed Snail Orchid (Pterostylis echinulata) by its taller stature, more numerous cauline leaves and smooth margined rosette leaves. These features are, however, variable within and between populations and the two taxa may represent forms of the same species.

Not Listed