WANOSCG Orchid Fact Sheet

Pterostylis sargentii

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Name and Authority

Pterostylis sargentii C.R.P.Andrews

Synonyms (previous names)

Oligochaetochilus sargentii; Ranorchis sargentii

Common Name

Frog Greenhood

Complex Name

Pterostylis sargentii (Frog Greenhoods)

Originally Described by

Cecil Andrews in J.Western Australia Nat.Hist.Soc. 2(2):57 (1905)

Distribution and Habitat

Murchinson River to Israelite Bay, growing in sandy, sandy-clay and granitic soils in woodlands and shrublands.

Flowering Months

· · · · · · Jul Aug Sep · · ·

Description

A widespread species 50–250 mm high with three to 10 cauline leaves 8–40 mm long by 2–5 mm wide and up to six translucent, olive-green and white or dark brown and white flowers 4–7 mm across.

Distinguishing Features

It is distinguished from the closely related Little Frog Greenhood (Pterostylis occulta) by the fleshy, glabrous (vs narrow, hairy) horn-like structures on the labellum.

WA Conservation Code (Threatened Status)

Not Listed

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