''Chorizema carinatum'' is a species of flowering plant in the family
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 southwest of Western Australia. It is an erect or spreading shrub with sharply-pointed leaves and bright yellow flowers.
Description
''Chorizema carinatum'' is an erect or spreading shrub that typically grows to a height of . The leaves are scattered, leathery, oblong or lance-shaped and up to long with a small, rigid, sharply-pointed, down-turned tip on the ends. The flowers are arranged on the ends of branches in
raceme
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...
s long, each flower on a short
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
...
. The
sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...
s are long and silky-hairy, the petals yellow and often barely longer than the sepals. Flowering occurs from October to December.
Taxonomy
This species was first formally described in 1844 by
Carl Meissner who gave it the name ''Callistachys carinata'' in
Lehmann's ''
Plantae Preissianae
''Plantae preissianae sive enumeratio plantarum quas in australasia occidentali et meridionali-occidentali annis 1838-1841 collegit Ludovicus Preiss'', more commonly known as ''Plantae preissianae'', is a book written by Johann Georg Christian Leh ...
'' from specimens collected in
Kent
Kent is a county in South East England and one of the home counties. It borders Greater London to the north-west, Surrey to the west and East Sussex to the south-west, and Essex to the north across the estuary of the River Thames; it faces ...
in 1840.
In 1992,
Joan Taylor
Joan Taylor (August 18, 1929 – March 4, 2012) was an American television and film actress.
Personal life
Taylor was born Rose Marie Emma in Geneva, Illinois. Her father, Joseph Emma, from Sicily, was a prop man in Hollywood in the 1920s. Af ...
and
Michael Crisp transferred the species to ''
Chorizema
''Chorizema'' is a genus of flowering plants in the family Fabaceae. They are small, evergreen shrubs and vine, climbers native plant, native to scrub habitats in Australia, valued in cultivation for their pea-like flowers. Most species do not ...
'' as ''C. carinatum'' in ''
Australian Systematic Botany''.
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 ...
(''carinatum'') means "keeled", referring to the leaves.
Distribution and habitat
''Chorizema carinatum'' grows in sand and sandy clay in the
Avon Wheatbelt,
Esperance Plains
Esperance Plains, also known as Eyre Botanical District, is a biogeographic region in southern Western Australia on the south coast between the Avon Wheatbelt and Hampton bioregions, and bordered to the north by the Mallee region. It is a pl ...
,
Jarrah Forest
Jarrah forest is tall open forest in which the dominant overstory tree is ''Eucalyptus marginata'' (jarrah). The ecosystem occurs only in the Southwest Botanical Province of Western Australia. It is most common in the biogeographic region named in ...
and
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 ...
bioregions of south-western Western Australia.
Conservation status
This pea is listed as "
Priority Three" 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 ...
.
References
{{Taxonbar, from=Q15528572
carinatum
Plants described in 1844
Fabales of Australia
Flora of Western Australia
Taxa named by Carl Meissner