Diuris inundata
{{Short description|Species of orchid}}
{{Speciesbox
| name =
| image =
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| genus = Diuris
| species = inundata
| authority = D.L.Jones & R.J.Bates{{cite web |title=Diuris inundata |url=https://biodiversity.org.au/nsl/services/apc-format/display/8988191 |website=Australian Plant Census |accessdate=2 July 2023}}
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Diuris inundata is a species of orchid that is endemic to south-eastern continental Australia. It usually has between three and six grass-like leaves and a flowering stem with one or two pale yellow to buttercup yellow flowers with a few rusty-red specks.
Description
Diuris inundata is a tuberous, terrestrial herb usually with a loose tuft of pale green, linear leaves {{cvt|60–100|mm}} long and {{cvt|2–6|mm}} wide. One or two pale yellow to buttercup yellow flowers {{cvt|15–25|mm}} wide are borne on a flowering stem {{cvt|100–350|mm}} tall. The dorsal sepal is egg-shaped, {{cvt|10-12|mm}} long, {{cvt|5–8|mm}} wide, the lateral sepals linear, paper-thin, {{cvt|15–20|mm}} long, {{cvt|2–4|mm}} wide and diverge from each other. The petals spread horizontally apart and are narrowly egg-shaped to narrowly elliptic, {{cvt|10–15|mm}} long and {{cvt|4–7|mm}} wide. The labellum has three lobes, the middle lobe triangular, {{cvt|10–20|mm}} long and about {{cvt|15|mm}} wide and the side lobes triangular, about {{cvt|2|mm}} long and {{cvt|1.5|mm}} wide and fringed with red. There are two diverging, densely pimply calli ridges. Flowering occurs as the habitat dries after winter, from early September to late November.{{cite journal |last1=Jones |first1=David L. |last2=Bates |first2=Robert J. |title=Two new species of Diuris from Winter-wet Flats in the South-east of South Australia and South-western Victoria. |journal=Australian Orchid Review |date=2017 |volume=82 |issue=2 |pages=47–48 |url=https://www.biodiversitylibrary.org/item/310607#page/49/mode/1up |access-date=2 July 2023}}
Taxonomy and naming
Diuris inundata was first formally described in 2017 by David Jones and Robert Bates in Australian Orchid Review from specimens collected near Penola in 2005.{{cite web|title=Duiris inundata|url= https://id.biodiversity.org.au/instance/apni/8989379|publisher=APNI|accessdate=2 July 2023}} The specific epithet (inundata) means "inundated", referring to the winter-wet places preferred by this species.
Distribution and habitat
This species of orchid usually grows among sedges and shrubs in winter-wet river red gum forest, in south-eastern South Australia and nearby areas of Victoria.