Pterostylis orbiculata

Pterostylis orbiculata, is a terrestrial, perennial, deciduous, herb with an underground tuber. Non-flowering plants have a rosette of between three and six, egg-shaped leaves, each leaf long and wide, the leaves on a stalk long. When flowering, there are between two and twenty reddish brown, greenish brown or green flowers with translucent white areas borne on a flowering stem high. The flowering stem has between six and twelve lance-shaped to egg-shaped stem leaves which are long and wide. The flowers are long and wide. The dorsal sepal and petals form a hood over the column. The dorsal sepal is long with a smooth surface and the petals are long, about wide and almost straight. The lateral sepals turn downwards and joined for most of their length forming an almost circular structure long and wide. The labellum is oblong, long, about wide, reddish or brownish and covered with short, stiff hairs. Flowering occurs from June to early August. ==Taxonomy and naming==

The coastal banded greenhood was first formally described in 2017 by David Jones and Christopher French and given the name Urochilus orbiculatus. The description was published in Australian Orchid Review from a specimen collected near Mogumber. In 2018 the same authors changed the name to Pterostylis orbiculata "to allow for the different taxonomic views held at generic level within the subtribe". It had previously been known as Pterostylis sp. 'coastal'. referring to the shape formed by the fused lateral sepals. ==Distribution and habitat==

Pterostylis orbiculata occurs in Western Australia from north of Geraldton to Bunbury with a few populations further inland. It grows in shruland, woodland and forest, sometimes around granite outcrops. ==References==