Pterostylis jacksonii

Pterostylis jacksonii D.L.Jones & C.J.French

Pterostylis sp. 'granite'; Diplodium jacksonii

Southwest Granite Snail Orchid

Pterostylis nana (Snail Orchids)

David Jones & Christopher French in Austral.Orchid Rev. 79(2):22-24 (2014)

Mount Frankland to Pogrongurup, growing in soil pockets on granite outcrops.

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An uncommon species 35–100 mm high with five to eight basal leaves forming an ascending basal rosette 8–24 mm across, three to five cauline leaves and one (rarely two) translucent, green and white flowers 4–5 mm across.

It is distinguished from the related Granite Loving Snail Orchid (Pterostylis sp. ‘southern granites’), which also grows on granite outcrops, by its numerous, large cauline leaves and shorter, thickened lateral sepals.

Not Listed

Named in honour of WA Native Orchid Study and Conservation Group member(s): Bill Jackson