Daviesia pleurophylla

Priority Two — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. pleurophylla
Binomial name
Daviesia pleurophylla

Daviesia pleurophylla is a species of flowering plant in the family Fabaceae and is endemic to a restricted area in the north of Western Australia. It is a large, openly-branched shrub with many ribbed branchlets, scattered, sharply-pointed, needle-shaped phyllodes, and yellow and dark red flowers.

Description

Daviesia pleurophylla is an openly-branched shrub that typically grows to a height of up to 3 m (9.8 ft) and has many ribbed branchlets. Its phyllodes are scattered, widely spreading, needle-shaped and sharply-pointed, 5–25 mm (0.20–0.98 in) long and about 0.75 mm (0.030 in) wide. The flowers are arranged in leaf axils in groups of two to four, the groups on a peduncle 3–18 mm (0.12–0.71 in) long, the rachis up to 6 mm (0.24 in) long, each flower on a pedicel 2–4 mm (0.079–0.157 in) long with narrow oblong bracts about 1 mm (0.039 in) long at the base. The sepals are 3–4 mm (0.12–0.16 in) long and joined at the base with ten ribs and small teeth on the end. The standard petal is elliptic with a notched centre, about 5.5 mm (0.22 in) long, 6 mm (0.24 in) wide, and yellow and dark red. The wings are about 5 mm (0.20 in) long and the keel about 4 mm (0.16 in) long. Flowering has been observed in September and the fruit is a flattened, triangular pod 13–14 mm (0.51–0.55 in) long.[2][3]

Taxonomy and naming

Daviesia pleurophylla was first formally described in 1995 by Michael Crisp in Australian Systematic Botany from specimens collected by Alex George in the Cape Range in 1970.[2][4] The specific epithet (pleurophylla) means "rib-leaved".[5]

Distribution and habitat

This daviesia grows in open shrubland on deep sand and is only known from the Cape Range-Exmouth area in the north-west of Western Australia.[2][3]

Conservation status

Daviesia pleurophylla is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions,[3] meaning that it is poorly known and from only one or a few locations.[6]

References

  1. ↑ "Daviesia pleurophylla". Australian Plant Census. Retrieved 26 March 2022.
  2. 1 2 3 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 48–50. doi:10.11646/phytotaxa.300.1.1.
  3. 1 2 3 "Daviesia pleurophylla". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Daviesia pleurophylla". APNI. Retrieved 26 March 2022.
  5. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 279. ISBN 9780958034180.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 26 March 2022.
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