Brunonia australis
| Brunonia | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Goodeniaceae |
| Genus: | Brunonia |
| Species: | B. australis |
| Binomial name | |
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Brunonia australis Sm. ex R.Br. |
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Brunonia australis, commonly known as the blue pincushion or native cornflower, is a perennial herb that grows widely across Australia. It is found in woodlands, open forest and sand plains. In the Cronquist system's classification scheme it was the sole member of the monogeneric plant family Brunoniaceae before the APG II system moved it into Goodeniaceae.
The leaves are about 10 cm long and grow from the base. Flowering is usually in spring, with hemispherical clusters of blue flowers developing on a stem about 50 cm in height.
Specimens of Brunonia were first collected by Robert Brown during the 1801–02 voyage of HMS Investigator under the command of Matthew Flinders. The genus had not been published by early 1810, when members of the Linnean Society of London sought to name a plant genus in Brown's honour. This genus was settled upon because it was so difficult to classify: "The genus under consideration is... exceedingly interesting, on account of its apparent relationship to several very different natural orders, and the great difficulty of referring it to any one in particular." The name Brunonia was chosen because a genus had already been named Brownea in honour of Patrick Browne, and Brunonia was seen as a compromise, "preserving as much resemblance to his name as possible, while I avoid all ambiguity with the Brownea previously established."
In February 1810, James Edward Smith read a formal description of Brunonia to the Linnean Society. Two species were given: Brunonia australis and Brunonia sericea. Later that year, Brown made use of Smith's names in his Prodromus florae Novae Hollandiae. However, Smith's speech did not go to print until 1811, so priority of publication of the genus belongs to Brown not Smith. Thus Brown unwittingly violated a virtual botanical taboo, by naming a genus after himself.
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