New Zealand Native Orchids

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Pterostylis tristis

Midget Greenhood

Wairau Valley, Nelson Lakes District 25 November 2022. Photo: Bill Campbell
Photo: Bill Campbell
Recorded distribution
Recorded distribution

Plant

To 10 cm tall, robust, multi-flowered. Leaves yellow green or brownish, may be mottled.

Flowers

Up to 7, brownish or less often green 5-10 mm tall. Tepals broad pointed, lateral sepals incompletely fused, below the labellum. Labellum broad, oval with a basal callus that points inward, not forward.

Flowering

October - January.

Habitat

Open grassland in short turf, often wetter areas or more shaded slopes, often with Hieracium. Marlborough south to Otago.

Conservation

Widespread, in small groups. At risk.

Notes

May occur with P. tanypoda which it resembles but flowers often brownish, though the defining difference is the inward pointing callus at the base of the labellum. First found in the Ruahines but not seen there for many years.

Key features

Small plant with a basal rosette, several small, usually brownish, flowers, labellum callus pointed inwards.

Photos

Wairau Valley, Nelson Lakes District 25 November 2022. Photo: Bill Campbell
Wairau Valley, Nelson Lakes District 25 November 2022. Photo: Bill Campbell
Porters Pass, Canterbury 30 November 2022. Photo: Bill Campbell
Porters Pass, Canterbury 30 November 2022. Photo: Bill Campbell
Lake Lyndon. Photo: Eric Scanlen
Photo: Photos: Eric Scanlen and Ian St George
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Greenhood orchids (Pterostylis)
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