''Daviesia scabrella'' 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 inland areas of Western Australia. It is a dense, low-lying, spreading shrub with many tangled branches, scattered, 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 red flowers.
Description
''Daviesia scabrella'' is a dense, low-lying, spreading shrub that typically grows up to high and wide with many tangled branches, its stems and leaves covered with minute hard points. Its phyllodes are scattered, tapering cylindrical, long, about wide and sharply-pointed. The flowers are arranged in one or two group of up to three in leaf axils on a
peduncle 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
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
...
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 b ...
s are long and joined at the base, the two upper lobes joined for most of their length, the lower three with lobes long. The
standard Standard may refer to:
Symbols
* Colours, standards and guidons, kinds of military signs
* Standard (emblem), a type of a large symbol or emblem used for identification
Norms, conventions or requirements
* Standard (metrology), an object th ...
petal is broadly egg-shaped, about long, wide, and yellow with a red base and a yellow 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 expresse ...
are about long and yellow with a red base, 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 Br ...
about long and dull red. Flowering has been observed in October and the fruit is a flattened, triangular
pod long.
Taxonomy
''Daviesia scabrella'' was first formally described in 2017 by
Michael Crisp
Michael Douglas Crisp (born 1950) is an emeritus professor in the Research School of Biology at the Australian National University located in Canberra. In 1976 he gained a PhD from the University of Adelaide, studying long-term vegetation chan ...
in the journal ''
Phytotaxa
''Phytotaxa'' is a peer-reviewed scientific journal for rapid publication on any aspect of systematic botany. It publishes on a wide range of subjects, but focuses on new species, monographs, floras, revisions, reviews, and typification issues. ...
'' from specimens he collected near
Condingup
Condingup is a town in the Goldfields–Esperance region of Western Australia, in the Shire of Esperance local government area, southeast of the state capital, Perth. At the 2016 census, it and the surrounding region had a population of 278.
...
in 2012.
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 ...
(''scabrella'') means "covered with minute hard points", referring to the texture of the vegetative parts of the plant.
Distribution and habitat
This daviesia grows in
mallee-heath and is only known from within about of Condingup in the
Mallee biogeographic region of inland Western Australia.
Conservation status
''Daviesia scabrella'' is listed as "not threatened" by the Government of Western Australia
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=Q42740527
scabrella
Taxa named by Michael Crisp
Plants described in 2017
Flora of Western Australia