Pterostylis hamiltonii

Pterostylis hamiltonii Nicholls

Pterostylis sp. 'robust'; Diplodium hamiltonii

Red-veined Shell Orchid

Pterostylis aspera (Shell Orchids)

William Nicholls in Victorian Naturalist 50: 89-91 (1933)

York to Stirling Range, growing in sandy and sandy-clay soils in woodlands and shrublands. Plants often occupy shallow soil pockets on granite outcrops.

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A robust species 50–150 mm high with three to six cauline leaves 20–40 mm long by 2–7 mm wide and one (rarely two) translucent, brown to reddish-brown (more rarely green) and white flowers 12–15 mm across.

It is distinguished from the related Brown-veined Shell Orchid (Pterostylis aspera) by its larger flowers, longer, distinctly curled labellum and inland distribution.

Not Listed