Nematoceras rivularis "Te Henui"
Species: N. rivularis "Te Henui"
Binomial name: Nematocerus rivularis "Te Henui"
Nematoceras rivularis "Te Henui" is a terrestrial tuberous herb of the Spider Orchids group. They are found singularly but sometimes they are in colonies. It has a single green leaf of which is orbicular to oblong-oval. The flowers form about 1 to 1.5 cm above the leaf during October - November. They are dull green with red flecks. The labellum is dark red and projects forward and well clear of the ovary. Lateral sepals and petals are long, filiform, often flecked with red. Petals are almost as long as the lateral sepals. Found on lowland stream banks, spray zones of waterfalls, seepages on cliff faces.