''Goodenia cycnopotamica'' is a plant in the Goodeniaceae family which is endemic to Australia, and found in both

South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...

and

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

It was first described as ''Velleia cycnopotamica'' by

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Vict ...

in 1867, from a specimen collected by James Drummond on the banks of the Swan River. in 2020,

Kelly Anne Shepherd Kelly Anne Shepherd (born 1970) is an Australian botanist, who has published some 91 names. Career Shepherd earned a B.Sc. (Hon) in 1992 with a thesis entitled "Faecal Analysis of Mammalian Herbivores in the Perup Forest, Western Australia." ...

and others transferred it to the genus, '' Goodenia'' based on nuclear, chloroplast and mitochondrial data, and this is the name accepted by the Western Australian Herbarium, but other databases have not yet made this change.

Description

''Goodenia cycnopotamica'' is an annual herb. The flower stalks are up to 25 cm long. Leaves oblong to oblanceolate, dentate to lyrate; lamina 2-6 cm long, 3-10 mm wide. The bracteoles are up to 15 mm long, and free. The sepals are free or nearly free, about 4 mm long, and are oblong to elliptic, and attached below the ovary. The pink, lilac to white corolla is 5 to 6 mm long, and hairy to almost smooth on the outside, while the inside is sometimes glabrous and sometimes not. There are no projections. The ovary has about four ovules. The capsule is globular. The seeds are wrinkled and 3 to 4 mm in diameter, with a comma-shaped body and broad wings. It flowers mainly from August to October.

References

{{taxonbar, from=Q104791030 cycnopotamica Plants described in 1867 Taxa named by Ferdinand von Mueller