New Zealand Native Orchids

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Microtis unifolia

Common Onion Orchid

Tipatipa Road, Otangaroa State Forest 15 October 2021. Photo: Bill Campbell
Photo: Bill Campbell
Recorded distribution
Recorded distribution

Plant

Very variable, up to 10mm thick at its base, leaf tubular with a flower spike up to 1 m tall in fertile situations (usually much less).

Flowers

Green, many, closely packed, tiny, with pointed, hooded dorsal sepals often half enclosing the narrow petals. Lateral sepals pointed and curled. Labellum oblong, irregularly scalloped, often narrow at middle; margins irregular; apex often notched but not apiculate; apical callus variable, warty; basal calli oval, prominent.

Flowering

Peaking September to November, continuing on to midsummer.

Habitat

Lowland to montane; a wide range of open habitats, both native and pasture or garden, often in grass. Throughout

Conservation

Common, often abundant.

Notes

A plant with a huge range in size such as the example here. The constant features are the very ornamented labellum and large basal calli. Autumn flowering plants are structurally similar.

Key features

Very ornamented labellum margins, single prominent basal callus.

Photos

Tipatipa Road, Otangaroa State Forest 15 October 2021. Photo: Bill Campbell
Oramahoe Road, Opua State Forest 15 October 2016. Photo: Bill Campbell
Tipatipa Road, Otangaroa Sate Forest 15 October 2021. Photo: Bill Campbell
Taipa Heights Drive, Taipa 24 November 2016. Photo: Bill Campbell
Mt. Parihaka, Whangarei 22 September 2016. Photo: Bill Campbell
Rangikapiti Rreserve, Mangonui 31 October 2015. Photo: Bill Campbell
Flower close-up. Photo: Eric Scanlen
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