Pterostylis sp. 'robust'

Pterostylis sp. 'robust'

Caldyanup Snail Orchid

Pterostylis nana (Snail Orchids)

Undescribed

Walpole to Manjimup, growing in clay soils in seasonally wet flats and drainage lines.

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A robust species 100–280 mm high with four to five basal leaves forming a ground hugging or ascending basal rosette 25–35 mm across, three to six cauline leaves and one (rarely two) translucent, green and white flowers 7–10 mm across.

It is distinguished from the other members of the Pterostylis nana complex by its relatively large flowers, broad petals and late flowering period.

Not Listed