''Hakea rugosa'', commonly known as wrinkled hakea or dwarf hakea,
is a shrub of 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 ...
native to Australia. It has sharp needle-shaped leaves and white or cream fragrant flowers in profusion from August to October.
Description
''Hakea rugosa'' is a wide-spreading shrub high with stiff, straight needle-shaped leaves long and wide. The new growth leaves and branches are covered in flattened, short, silky hairs. The
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 ...
consists of densely clustered cream or white flowers in profusion in the leaf axils. The
pedicel
Pedicle or pedicel may refer to:
Human anatomy
*Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures
...
is long and covered with flattened silky hairs. The
perianth
The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when ...
long with silky hairs at the base, 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 and upright. The small, S-shaped fruit are more or less at right angle to the stalk, long and wide. The fruit are coarsely wrinkled, occasionally with fine dark warts and the long narrow beak is bent sharply back onto the fruit. Flowering occurs from August to October.
Taxonomy and naming
''Hakea rugosa'' was first described in 1810 by botanist
Robert Brown and published the description in Transactions of the ''
Linnean Society of London
The Linnean Society of London is a learned society dedicated to the study and dissemination of information concerning natural history, evolution, and taxonomy. It possesses several important biological specimen, manuscript and literature colle ...
''.
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 ...
(''rugosa'') is derived from the Latin, ''rugosus,-a,-um'' or "wrinkle", giving wrinkled, rugose.
[Plantillustrations: ''Hakea rugosa''.]
Retrieved 8 December 2018.
Distribution and habitat
Dwarf hakea grows on loam or sand in mallee scrub or coastal heath from
Eyre Peninsula
The Eyre Peninsula is a triangular peninsula in South Australia. It is bounded by the Spencer Gulf on the east, the Great Australian Bight on the west, and the Gawler Ranges to the north.
Originally called Eyre’s Peninsula, it was named aft ...
in South Australia to western
Victoria
Victoria most commonly refers to:
* Victoria (Australia), a state of the Commonwealth of Australia
* Victoria, British Columbia, provincial capital of British Columbia, Canada
* Victoria (mythology), Roman goddess of Victory
* Victoria, Seychelle ...
.
References
{{Taxonbar, from=Q5640413
rugosa
The rugosa, also called the tetracorallia or horn coral, are an extinct order of solitary and colonial corals that were abundant in Middle Ordovician to Late Permian seas.
Solitary rugosans (e.g., '' Caninia'', '' Lophophyllidium'', '' Neoza ...
Flora of South Australia
Flora of Victoria (state)
Taxa named by Robert Brown (botanist, born 1773)
Plants described in 1810