WANOSCG Orchid Fact Sheet

Pterostylis roensis

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Name and Authority

Pterostylis roensis M.A.Clem. & D.L.Jones

Synonyms (previous names)

Pterostylis sp. 'greasy'; Oligochaetochilus roensis

Common Name

Rufous Greenhood

Complex Name

Pterostylis rufa (Rufus Greenhoods)

Originally Described by

Mark Clements & David Jones in Austral.Orchid Res. 1:126 (1989)

Distribution and Habitat

Beacon to east of Balladonia, growing in sandy-clay and clay soils in woodlands and shrublands. The species is common on breakaways and inland granite outcrops.

Flowering Months

· · · · · · · · Sep Oct Nov ·

Description

An inland species 150–250 mm high with six to 10 leaves forming a ground-hugging basal rosette 30–50 mm across and up to six greasy-textured translucent, green and white to greenish-brown and white flowers 8–12 mm across.

Distinguishing Features

It is distinguished from Painted Rufous Greenhood (Pterostylis picta) by its darker coloured flowers, broader lateral sepals and generally more north-easterly distribution

WA Conservation Code (Threatened Status)

Not Listed

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