WANOSCG Orchid Fact Sheet

Pterostylis segregata

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Name and Authority

Pterostylis segregata G.Brockman & C.J.French

Common Name

Shy Frog Greenhood

Complex Name

Pterostylis sargentii (Frog Greenhoods)

Originally Described by

Garry Brockman & Christopher French in Nuytsia 34:61-63, Fig. 1A, B (2023)

Distribution and Habitat

Known from two disjunct populations in Bremer Bay and Whicher Range, growing in sand over laterite in forests and shrublands.

Flowering Months

· · · · · · Jul Aug · · · ·

Description

A restricted species 50–140 mm high with three to five cauline leaves 16–23 mm long by 3–4 mm wide and up to three translucent olive-green and white or brown and white flowers 3–5 mm across.

Distinguishing Features

It is distinguished from the closely related Little Frog Greenhood (Pterostylis occulta) by the papillate, upper lobes of the labellum, smaller flowers and toothed petal inferior margins.

WA Conservation Code (Threatened Status)

Priority One

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