''Grevillea rosieri'' is a species of flowering plant in the family
Proteaceae
The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Together with the Platanaceae and Nelumbonaceae, they make up the order Pro ...
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 the
south-west
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...
of Western Australia. It is a low spreading to erect shrub with linear leaves, the edges rolled under, and small groups of red to rusty red flowers, the
style sometimes cream-coloured.
Description
''Grevillea rosieri'' is a spreading to erect shrub that typically grows to a height of up to . Its leaves are linear, long and wide with the edges rolled under, concealing the lower surface. The flowers are arranged singly in leaf axils, or in groups of up to 3, on a woolly-hairy
rachis long. The flowers are red to rusty red, the style occasionally cream-coloured with a red tip, the
pistil
Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' ...
long. Flowering occurs from July to September, and the fruit is a hairy, elliptic
follicle long.
Taxonomy
''Grevillea rosieri'' was first formally described in 1986 by
Donald McGillivray in his book "New Names in ''Grevillea'' (Proteaceae)" from specimens collected in 1951.
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 ...
(''rosier'') honours S.B. Rosier, an Anglican minister who discovered the species.
Distribution and habitat
This grevillea grows in shrubland from near
Wubin to near Kirwan Nature Reserve (near
Burakin) in the
Avon Wheatbelt,
Swan Coastal Plain
The Swan Coastal Plain in Western Australia is the geographic feature which contains the Swan River as it travels west to the Indian Ocean. The coastal plain continues well beyond the boundaries of the Swan River and its tributaries, as a geol ...
and
Yalgoo bioregions of south-western Western Australia.
Conservation status
''Grevillea rosieri'' is listed as "
Priority Two" by the Western Australian Government
Department of Biodiversity, Conservation and Attractions
The Department of Biodiversity, Conservation and Attractions (DBCA) is the Western Australian government
The Government of Western Australia, formally referred to as His Majesty's Government of Western Australia, is the Australian state de ...
,
meaning that it is poorly known and from only one or a few locations.
See also
*
List of Grevillea species
References
{{Taxonbar, from=Q15582093
rosieri
Proteales of Australia
Eudicots of Western Australia
Taxa named by Donald McGillivray
Plants described in 1986