WANOSCG Orchid Fact Sheet

Pterostylis brevisepala

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Name and Authority

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

Synonyms (previous names)

Pterostylis sp. short sepals; Diplodium brevisepalum

Common Name

Short Eared Snail Orchid

Complex Name

Pterostylis nana (Snail Orchids)

Originally Described by

David Jones & Christopher French in Australian Orchid Review 84(3): 35-37 (2019) as Diplodium brevisepalum

Distribution and Habitat

York to Lancelin, growing in sandy soils in woodlands and shrublands. The species readily colonises pine plantations north of Perth.

Flowering Months

· · · · · · Jul Aug Sep · · ·

Description

A common species 70–200 mm high with four to six leaves forming a ground-hugging or ascending basal rosette 20–32 mm across, four to six cauline leaves and one (rarely two) translucent, green and white flowers 5–6 mm across.

Distinguishing Features

It is distinguished from the closely related Murdoch Snail Orchid (Pterostylis ectypha) by its shorter stature, fewer, smaller rosette leaves, fewer, smaller cauline leaves and squared off tips to the lateral sepals.

WA Conservation Code (Threatened Status)

Not Listed

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