Biology:Daviesia flexuosa

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Short description: Species of legume

Daviesia flexuosa
Daviesia flexuosa.jpg
In Mount Frankland National Park
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. flexuosa
Binomial name
Daviesia flexuosa
Benth.[1]

Daviesia flexuosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west coast of Western Australia. It is a glabrous, spreading shrub with zig-zagged branchlets, scattered, sharply-pointed, narrowly triangular phyllodes and yellow and red flowers.

Description

Daviesia flexuosa is a glabrous, spreading shrub that typically grows to a height of up to 2.5 m (8 ft 2 in) and has zig-zagged branchlets with a phyllode at each bend. The phyllodes are sharply pointed, 5–43 mm (0.20–1.69 in) long and 1–2 mm (0.039–0.079 in) wide at the base. The flowers are arranged in groups of two to four in leaf axils on a peduncle 1–2 mm (0.039–0.079 in) long, the rachis up to 1 mm (0.039 in), each flower on a pedicel 1.5–3.0 mm (0.059–0.118 in) long with oblong bracts about 1 mm (0.039 in) long. The sepals are 3–4 mm (0.12–0.16 in) long and joined at the base, the upper two lobes joined for most of their length, the lower three about 0.25 mm (0.0098 in) long and triangular. The standard petal is broadly egg-shaped, 7.5–9.0 mm (0.30–0.35 in) long, 7–9 mm (0.28–0.35 in) wide and yellow with a broad red base, the wings 6.0–6.5 mm (0.24–0.26 in) long and red, and the keel 5.0–5.5 mm (0.20–0.22 in) long and red. Flowering occurs from July to September and the fruit is a flattened triangular pod 17–22 mm (0.67–0.87 in) long.[2][3]

Taxonomy

Daviesia flexuosa was first formally described in 1837 by George Bentham in Stephan Endlicher's Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel.[4][5] The specific epithet (flexuosa) means "zig-zag", referring to the stem.[6]

Distribution and habitat

This species of pea grows in open forest and heathland, near the coast of southern Western Australia between Cape Naturaliste and Mount Manypeaks..[2][3]

Conservation status

Daviesia flexuosa is listed as "not threatened" by the Department of Biodiversity, Conservation and Attractions.[2]

References

  1. "Daviesia flexuosa". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/82657. 
  2. 2.0 2.1 2.2 "Daviesia flexuosa". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/3811. 
  3. 3.0 3.1 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa 300 (1): 222–224. doi:10.11646/phytotaxa.300.1.1. 
  4. "Daviesia flexuosa". APNI. https://id.biodiversity.org.au/instance/apni/499904. 
  5. Bentham, George; Endlicher, Stefan F.L. (ed.); Fenzl, Eduard (ed.); Bentham, George (ed.); Schott, Heinrich W. (ed.) (1837). Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hüge. p. 32. https://babel.hathitrust.org/cgi/pt?id=chi.64405481&view=1up&seq=42&skin=2021. Retrieved 10 January 2022. 
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 200. ISBN 9780958034180. 

Wikidata ☰ Q15532770 entry