
''Daviesia lineata'' is a species of flowering plant in the family
Fabaceae 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 els ...
to the south-west of Western Australia. It is an erect, bushy shrub with scattered needle-shaped, sharply-pointed
phyllode
Phyllodes are modified petioles or leaf stems, which are leaf-like in appearance and function. In some plants, these become flattened and widened, while the leaf itself becomes reduced or vanishes altogether. Thus the phyllode comes to serve the ...
s and yellow and reddish flowers.
Description
''Daviesia lineata'' is an erect, bushy shrub that typically grows to a height of up to . Its phyllodes are scattered, needle-shaped, sharply-pointed, long, wide and finely striated. The flowers are arranged in groups of one or two in leaf axils on a
peduncle Peduncle may refer to:
*Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed
*Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body
**Peduncle (art ...
long, the
rachis
In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft".
In zoology and microbiology
In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this c ...
up to long, each flower on a
pedicel long. 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 ...
s are long and joined at the base, the upper two lobes joined for most of their length and the lower three triangular and about long. The
standard petal is broadly egg-shaped, long and yellow with a dark red centre, the
wings
A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is exp ...
long and orange-red, and the
keel
The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in B ...
about long and red. Flowering occurs in September and October and the fruit is a triangular
pod long with a sharply-pointed beak.
Taxonomy and naming
''Daviesia lineata'' was first formally described in 1995 by
Michael Crisp in ''
Australian Systematic Botany
''Australian Systematic Botany'' is an international peer-reviewed scientific journal published by CSIRO Publishing. It is devoted to publishing original research, and sometimes review articles, on topics related to systematic botany, such as bi ...
'' from specimens collected near
Newdegate on the road to
Lake King
Lake King is a town in the eastern Wheatbelt region of Western Australia, from Perth along State Route 40 between Kelmscott and Ravensthorpe. As of 2016, the town had a population of 95. The 2011 census recorded both the population of the ...
in 1984.
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 ...
(''lineata'') means "marked with straight lines", referring to the phyllodes.
Distribution and habitat
This daviesia grows in
kwongan
Kwongan is plant community found in south-western Western Australia. The name is a Bibbelmun (Noongar) Aboriginal term of wide geographical use defined by Beard (1976) as
Kwongan has replaced other terms applied by European botanists such as ...
in areas largely cleared for agriculture in the Newdegate – Lake King area in the
Mallee biogeographic region of south-western Western Australia.
Conservation status
''Daviesia lineata'' 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 department responsible for managing lands and waters described in the ''Conservation and Land Management Act 1984'', the ''Rottnest Island ...
,
meaning that it is poorly known and from only one or a few locations.
References
{{Taxonbar, from=Q51043744
lineata
Eudicots of Western Australia
Plants described in 1995
Taxa named by Michael Crisp