WANOSCG Orchid Fact Sheet

Pterostylis saxosa

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Name and Authority

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

Synonyms (previous names)

Pterostylis sp. 'granite bird'; Plumatichilos saxosus

Common Name

Granite Bird Orchid

Complex Name

Pterostylis barbata/turfosa (Bird Orchids)

Originally Described by

David Jones & Christopher French in Australian Orchid Review 82(5): 34-35 (2017) as Plumatichilos saxosus

Distribution and Habitat

Shannon to Walpole, growing in shallow soil pockets on granite outcrops.

Flowering Months

· · · · · · · · Sep Oct Nov ·

Description

A granite outcrop species 90–150 mm high with a loose, ascending rosette of leaves 10–20 mm across, two to four cauline leaves and one (rarely two) translucent, light green and white flowers 8–10 mm across.

Distinguishing Features

It is distinguished from Bearded Bird Orchid (Pterostylis turfosa) by its usually shorter stature, smaller, narrower flowers, narrowly separated lateral sepals and granite outcrop habitat.

WA Conservation Code (Threatened Status)

Not Listed

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