''Olearia hookeri'', commonly known as crimsontip daisybush, is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

and is endemic to Tasmania. It is a sticky shrub with small, narrowly linear leaves and white to bluish-purple and yellow, daisy-like

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

Description

''Olearia hookeri'' is a sticky, glabrous shrub that typically grows to a height of up to . Its leaves are narrowly linear, long. The heads or daisy-like "flowers" are arranged singly on the ends of branchlets and are in diameter. Each head has eight to ten white to bluish-purple ray

florets This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...

surrounding a slightly larger number of yellow disc florets. Flowering occurs from September to December and the fruit is a short, hairy

achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not ope ...

, the pappus with bristles of different lengths.

Taxonomy

The species was formally described in 1853 by Otto Wilhelm Sonder who gave it the name ''Eurybia hookeri'' in ''Linnaea: ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde'', based on plant material collected b
Charles Stuart
In 1867, George Bentham changed the name to ''Olearia hookeri'' in '' Flora Australiensis''.

Distribution and habitat

''Olearia hookeri'' grows on dry hills near

Hobart Hobart ( ; Nuennonne/Palawa kani: ''nipaluna'') is the capital and most populous city of the Australian island state of Tasmania. Home to almost half of all Tasmanians, it is the least-populated Australian state capital city, and second-small ...

and in shrubby woodland on the south and central-east coasts of Tasmania.

Conservation status

This daisy bush is listed as "rare" under the Tasmanian Government ''

Threatened Species Protection Act 1995 The ''Threatened Species Protection Act 1995'' (TSP Act), is an act of the Parliament of Tasmania that provides the statute relating to conservation of flora and fauna. Its long title is An Act to provide for the protection and management of th ...

''.

References

{{Taxonbar, from=Q15588651 hookeri Flora of Tasmania Taxa named by Ferdinand von Mueller Plants described in 1853