New Zealand Native Orchids

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Microtis oligantha

Small Onion Orchid

Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Photo: Bill Campbell
Recorded distribution
Recorded distribution

Plant

Often less than 10cm tall and usually with fewer than 10 tiny green flowers.

Flowers

About 2.5 mm long. Dorsal sepal short, evenly rounded. Lateral sepals usually pointing straight down. Labellum oblong, the margins with few shallow indentations; anterior callus often not prominent, basal calli large, squarish and almost full width of labellum, their tops almost flat.

Flowering

December - February.

Habitat

Montane to alpine open short grass turfs, or boggy areas, streamsides, lakesides.

Conservation

Locally common.

Notes

Usually grows at higher altitudes than M. unifolia.

Key features

Very small size, few flowers having a squat labellum with a large callus and almost straight, pendant lateral sepals.

Photos

Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
Mt. Kaukau, Wellington 29 December 2021. Photo: Bill Campbell
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Onion and leek orchids
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