''Banksia corvijuga'' is a species of densely-foliaged shrub that 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 Western Australia. It has broadly linear, serrated leaves, heads of about sixty yellow flowers and
glabrous follicles.
Description
''Banksia corvijuga'' is a densely-foliaged shrub that typically grows to a height of but does not form a
lignotuber. It has serrated, broadly linear leaves that are long and wide on a thin
petiole long, with between ten and twenty-five triangular teeth on each side. The flowers are borne on a head containing about sixty flowers with broadly linear to egg-shaped, dark reddish brown
involucral bracts long at the base of the head. The flowers are yellow with a
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 and a
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 September to October and the fruit is a glabrous, elliptical to egg-shaped
follicle about long.
Taxonomy and naming
This banksia was first formally described in 1996 by
Alex George Alexander or Alex George may refer to:
*Alex George (botanist) (born 1939), Australian botanist
* Alexander L. George (1920–2006), American political scientist
* Alexander George (philosopher), American philosopher
*Alex George (motorcyclist), Sc ...
in the journal ''
Nuytsia
''Nuytsia floribunda'' is a hemiparasitic tree found in Western Australia. The species is known locally as moodjar and, more recently, the Christmas tree or Western Australian Christmas tree. The display of intensely bright flowers during the ...
'' and given the name ''Dryandra corvijuga'' from specimens collected in 1986 near
Ravensthorpe.
In 2007,
Austin Mast and
Kevin Thiele transferred all the dryandras to the genus ''
Banksia'' and this species became ''Banksia corvijuga''.
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 ...
(''corvijuga'') is derived from Latin words meaning "a crow or raven" and "paired or yoked together", referring to the Ravensthorpe Range.
Distribution and habitat
''Banksia corvijuga'' grows in dense shrubland in the Ravensthorpe Range.
Conservation status
This banksia is classified as "
Priority Three" by the Government of Western Australia
Department of Parks and Wildlife
The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the ''Conservation and Land Management Act 1984'' and implementing the state's conservation and e ...
meaning that it is poorly known and known from only a few locations but is not under imminent threat.
References
{{Taxonbar, from=Q4856576
corvijuga
Plants described in 1996
Endemic flora of Western Australia
Eudicots of Western Australia
Taxa named by Kevin Thiele