''Olearia exiguifolia'' commonly known as small-leaved daisy bush, is a species of flowering plant 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 Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to south-western Australia. It is an erect or straggly shrub with broadly egg-shaped leaves with the narrower end towards the base, and white 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 exiguifolia'' is an erect or straggly shrub that typically grows to a height of up to and has many branches that are covered with woolly hairs flattened against the surface. The leaves are broadly egg-shaped with the narrower end towards the base, to wedge-shaped, long and wide, usually with three teeth at the tip. The upper surface of the leaves is dark green and the lower surface covered with woolly, cream- to rust-coloured hairs. The heads or daisy-like "flowers" are arranged singly on the ends of branchlets, each head with five or six white 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 ...

, the

ligule A ligule (from "strap", variant of ''lingula'', from ''lingua'' "tongue") is a thin outgrowth at the junction of leaf and leafstalk of many grasses (Poaceae) and sedges. A ligule is also a strap-shaped extension of the corolla, such as that of a ...

oblong and about long, surrounding five or six yellow disc florets. Flowering occurs from July to February and the fruit is a 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 ...

about long, the pappus with thirty to forty bristles long.

Taxonomy

Small-leaved daisy bush was first formally described in 1865 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 ...

who gave it the name ''Aster exiguifolius'' in '' Fragmenta Phytographiae Australiae'' from specimens collected by

George Maxwell George Maxwell (1804–1880) was a professional collector of plants and insects in Southwest Australia. The botanical specimens he obtained were used to make formal descriptions of the region's plant species. Biography He was born in England in 18 ...

. In 1867,

George Bentham George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studi ...

changed the name to ''Olearia exiguifolia'' in ''

Flora Australiensis ''Flora Australiensis: a description of the plants of the Australian Territory'', more commonly referred to as ''Flora Australiensis'', and also known by its standard abbreviation ''Fl. Austral.'', is a seven-volume flora of Australia published be ...

''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''exiguifolia'') means "small-leaved".

Distribution and habitat

''Olearia exiguifolia'' mainly grows in scrub on sand dunes and is widely distributed in southern inland areas of Western Australia and in south-western South Australia as far east as the Eyre and

Yorke Peninsula The Yorke Peninsula is a peninsula located northwest and west of Adelaide in South Australia, between Spencer Gulf on the west and Gulf St Vincent on the east. The peninsula is separated from Kangaroo Island to the south by Investigator Strai ...

References

External links

''Olearia exiguifolia'' images & occurrence data
from

Atlas of Living Australia The Atlas of Living Australia (ALA) is an online repository of information about Australian plants, animals, and fungi. Development started in 2006. The Commonwealth Scientific and Industrial Research Organisation (CSIRO) is an organisation sign ...

{{Taxonbar, from=Q15586225 Taxa named by Ferdinand von Mueller Plants described in 1865 Flora of Western Australia Flora of South Australia exiguifolia