New Zealand Native Orchids

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Pterostylis oliveri

Oliver’s Greenhood

Old Coach Road, Arthur’s Pass. Photo: Kathleen Shepherd
Photo: Kathleen Shepherd
Recorded distribution
Recorded distribution

Plant

To 35 cm tall, leaves oval, wavy-margined, thin, blue green 5-10 cm x 20-30 mm.

Flowers

Large 30-50 cm tall. Dorsal sepal strongly curled under, lateral sepals spreading, tips long and erect, labellum dark green, long, narrow, tapering.

Flowering

December - January.

Habitat

Montane to sub-alpine, open scrub and low forest, often on limestone or marble.

Conservation

Often very abundant, especially on marble.

Notes

A characteristic marble plant but also occurs on greywacke at Arthur’s Pass. Sterile putative hybrids (no stigma) with P. australis have been seen.

Key features

Large flower, strongly in-curled dorsal sepal, thin crinkly leaves.

Photos

Old Coach Road, Arthur’s Pass. Photo: Kathleen Shepherd
Old Coach Road, Arthur’s Pass. Photo: Kathleen Shepherd
Old Coach Road, Arthur’s Pass. Photo: Kathleen Shepherd
Arthur’s Pass 29 November 2022. Photo: Bill Campbell
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Greenhood orchids (Pterostylis)
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