Pterostylis argillacea

Pterostylis argillacea G.Brockman & C.J.French

Pterostylis sp. 'Murchison'

Kalbarri Rufous Greenhood, Murchison Rufous Greenhood

Pterostylis rufa (Rufus Greenhoods)

Garry Brockman & Christopher French in Nuytsia 35: 25-27 (2024)

Kalbarri to Nerren Nerren Station, growing in clay-loam soils in mallee woodlands.

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A common northern species 120–180 mm high with seven to ten leaves forming a ground-hugging basal rosette 20–40 mm across and up to seven translucent, green and white or brown and white flowers 8–11 mm across.

It is distinguished from the related Spoon-lipped Rufous Greenhood (Pterostylis spathulata) by its smaller flowers, straight rather than upcurved lateral sepals and more northerly distribution.

Priority Two