Coronidium densifolium, commonly known as dense everlasting, is a species of flowering plant in the family Asteraceae and is endemic to South Australia. It is ascending to erect perennial herb with woolly stems hidden by the leaves, lance-shaped leaves and heads of pale yellow to brownish flowers.
Description Coronidium densifolium is an ascending to erect, rhizomatous perennial herb that typically grows to a height of up to about with densely woolly stems that are mostly hidden by the leaves. Its leaves are lance-shaped, sometimes with the narrower end towards the base, long and wide. The flowers are borne in sessile, more or less hemispherical heads in diameter on a peduncle long. The bracts are pale yellow to brownish yellow, in five to eight rows. The cypselas are narrowly cylindrical, long.
Taxonomy Coronidium densifolium was first described in 2014 by Neville Grant Walsh from an unpublished manuscript by John McConnell Black in the journal Muelleria from specimens collected in the Black Swamp, (about north-north-east of Victor Harbour on the railway) in 1968. The specific epithet (densifolium) was "used by J.M. Black on the two collections made before his death in 1951".
Distribution and habitat No extant populations of dense everlasting are known, but the species probably occurred with Melaleuca uncinata in mallee, open woodland and heath in the Flinders Lofty Block and Kanmantoo bioregions of south-eastern South Australia.
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