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Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Subtribe: Acianthinae
Genus: Nematoceras
Hook.f., 1853

see text

Nematoceras is a genus of orchids (family Orchidaceae), sometimes known as spider orchids, helmet orchids or spidery helmet-orchids, found mainly in New Zealand and its subantarctic islands, with two species on Australia’s Macquarie Island. The genus was absorbed by Corybas for a long period before being reinstated, but now it is accepted back into Corybas. Such is the nature of the turmoil in orchid taxonomy.


Nematoceras Spider Orchid
Close-up of Nematoceras Spider Orchid