Acidonia microcarpa is a species of shrub in the plant family Proteaceae, and is the only species in the genus Acidonia. It is endemic to the south coast of the Southwest Botanic Province of Western Australia.
Description
This is a smooth-barked shrub reaching up to in height. Small branches are hairy and ribbed, the leaves are long and narrow, measuring up to long and just wide. The flowers are bright yellow and about long.
Taxonomy
It was originally published by Robert Brown in 1810 as a species of
Persoonia. In 1975, Lawrence Alexander Sidney Johnson and Barbara G. Briggs erected the genus
Acidonia, transferring a great many
Persoonia species into it. Later, the circumscription of
Acidonia was changed to include only
A. microcarpa.
However, phylogenetic studies indicate that Acidonia is nested in the larger genus Persoonia, where it was once included.
Distribution and habitat
Acidonia microcarpa occurs the in the far southwestern corner of Western Australia, from
Margaret River to Albany and within of the coast. It grows on sandy soils on the margins of water bodies and swamps.
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