WANOSCG Orchid Fact Sheet

Pterostylis scabra

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Name and Authority

Pterostylis scabra Lindl.

Synonyms (previous names)

Pterostylis constricta; Pterostylis reflexa var. constricta; Diplodium scabrum

Common Name

Green-veined Shell Orchid

Complex Name

Pterostylis aspera (Shell Orchids)

Originally Described by

John Lindley in Sketch Veg.Swan R. 53 (1840)

Distribution and Habitat

Kalbarri to Israelite Bay, growing in sandy and sandy-clay soils in woodlands and shrublands.

Flowering Months

· · · · May Jun Jul Aug · · · ·

Description

A common inland species 80–150 mm high with three to six cauline leaves 20–70 mm long by 2–5 mm wide and one (rarely two) translucent, dull green to greenish-brown (more rarely brown) and white flowers 12–15 mm across.

Distinguishing Features

It is distinguished from the related Narrow-hooded Shell Orchid (Pterostylis angusta) by its broader hood, shorter labellum and more northerly and easterly distribution.

WA Conservation Code (Threatened Status)

Not Listed

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