Biology:Daviesia trigonophylla

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Short description: Species of legume

Daviesia trigonophylla
Daviesia trigonophylla McMaster.jpg
In Hassell 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. trigonophylla
Binomial name
Daviesia trigonophylla
Meisn.[1]

Daviesia trigonophylla is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is an erect, bushy shrub with elliptic or egg-shaped phyllodes that are triangular in cross-section, and orange, dark red and maroon flowers.

Description

Daviesia trigonophylla is an erect, bushy shrub that typically grows to a height of up to 1 m (3 ft 3 in) and has winged branchlets. Its phyllodes are elliptic to egg-shaped, triangular in cross-section, 3–15 mm (0.12–0.59 in) long and 2–7 mm (0.079–0.276 in) wide and sharply-pointed. The flowers are arranged in a group of three in leaf axils on a peduncle about 0.5 mm (0.020 in) long, the rachis 0.5–2 mm (0.020–0.079 in) long, each flower on a pedicel 1.5–2.5 mm (0.059–0.098 in) long. The sepals are 3.0–3.5 mm (0.12–0.14 in) long, the two upper lobes joined for most of their length and the lower three triangular. The standard petal is elliptic with a notched tip, 5.5–8 mm (0.22–0.31 in) long, 6–9.5 mm (0.24–0.37 in) wide, and orange with a dark red base and two pale yellow spots. The wings are 5–6 mm (0.20–0.24 in) long and maroon, the keel 4–5 mm (0.16–0.20 in) long and maroon. Flowering occurs from August to October and the fruit is an inflated triangular pod 11–13 mm (0.43–0.51 in) long.[2][3]

Taxonomy

Daviesia trigonophylla was first formally described in 1848 by Carl Meissner in Lehmann's Plantae Preissianae.[4][5] The specific epithet (trigonophylla) means "triangular-leaved", referring to the cross-sectional shape of the phyllodes.[6]

Distribution and habitat

This daviesia usually grows in mallee in the Stirling Range and nearby coastal areas in the Avon Wheatbelt, Esperance Plains and Jarrah Forest bioregions of southern Western Australia.[2][3]

Conservation status

Daviesia trigonophylla is classified as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[3]

References

  1. "Daviesia trigonophylla". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/83646. 
  2. 2.0 2.1 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa 300 (1): 226–228. doi:10.11646/phytotaxa.300.1.1. 
  3. 3.0 3.1 3.2 "Daviesia trigonophylla". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/3846. 
  4. "Daviesia trigonophylla". APNI. https://id.biodiversity.org.au/instance/apni/501321. 
  5. Meissner, Carl (1848). Plantae Preissianae. 2. Hamburg. p. 213. https://www.biodiversitylibrary.org/item/9228#page/215/mode/1up. Retrieved 20 May 2022. 
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 327. ISBN 9780958034180. 

Wikidata ☰ Q15532933 entry