- Plants
- ›Vascular Plants
- ›flowering plants
- ›monocots
- ›Agaves, Orchids, Irises, and Allies
- ›Orchids
- ›Orchidoid Orchids
- ›Diurideae
- ›Prasophyllinae
- ›Microtis

Microtis orbicularis
Microtis orbicularis, commonly known as the dark mignonette orchid, is a species of orchid endemic to southern Australia. It has a single thin, more or less hollow, onion-like leaf and up to fifty small yellowish-green and red flowers. The plants grow in winter-wet areas, often in shallow water and unlike the similar M. cupularis do not turn black as they dry.
From the article Microtis orbicularis on Wikipedia (CC BY-SA), quoted section by section
Description
Microtis orbicularis is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, smooth, almost tubular leaf 100–300 mm (4–10 in) long and about 3 mm (0.1 in) wide. Between three and thirty yellowish-green and reddish flowers are well spaced along a flowering stem 10–50 mm (0.4–2 in), reaching to a height of 150–350 mm (6–10 in) tall. The flowers are about 3.5 mm (0.1 in) long and 2.5 mm (0.1 in) wide. The dorsal sepal is egg-shaped, 1–2 mm (0.04–0.08 in) long and wide. The lateral sepals are linear, about 1 mm (0.04 in) long, 0.5 mm (0.02 in) wide, pressed against the ovary and hidden below the labellum. The petals are lance-shaped to egg-shaped, 1–2 mm (0.04–0.08 in) long, about 1 mm (0.04 in) wide and spread apart below the dorsal sepal. The labellum is more or less round, shallow cup-shaped, fleshy, 1.5–2.5 mm (0.06–0.1 in) long and wide. Flowering occurs from September to December.
Range & habitat
Microtis orbicularis grows in swamps and seasonally wet depressions, sometimes with the base of the plant submerged. It is found between Dongara and Cape Le Grand in Western Australia, in coastal areas of eastern South Australia as far west as the Eyre Peninsula, in the south-west of Victoria and on the north coast of Tasmania.
Wikipedia: “Distribution and habitat”
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Microtis orbicularis in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 603126.