Daviesia longifolia is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, many-stemmed shrub with scattered, erect, cylindrical phyllodes and yellow and red flowers.
| Daviesia longifolia | |
|---|---|
| |
| Near Bindoon | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Daviesia |
| Species: | D. longifolia
|
| Binomial name | |
| Daviesia longifolia | |
Description edit
Daviesia longifolia is a bushy, many-stemmed shrub, typically 30–70 cm (12–28 in) high and about 1–3 m (3 ft 3 in – 9 ft 10 in) wide with weak, tangled branchlets. Its phyllodes are scattered, erect, cylindrical, snaking or curved, up to 250 mm (9.8 in) long and 1–10 mm (0.039–0.394 in) wide with six or more parallel ribs. The flowers are arranged in racemes of four to fifteen in leaf axils on a peduncle usually 10–17 mm (0.39–0.67 in) long, the rachis mostly 6–28 mm (0.24–1.10 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 and the lower three about 0.5 mm (0.020 in) long. The standard petal is egg-shaped with a notch at the tip, 6.5–9 mm (0.26–0.35 in) long, yellow and dark red with an oblong yellow mark at the centre. The wings are 6.5–8 mm (0.26–0.31 in) long and dark red, and the keel 4.5–6.0 mm (0.18–0.24 in) long and deep red. Flowering occurs between August and December and the fruit is a flattened triangular pod 7–12 mm (0.28–0.47 in) long.[2][3]
Taxonomy and naming edit
Daviesia longifolia was first formally described in 1839 by George Bentham in John Lindley's A Sketch of the Vegetation of the Swan River Colony.[4][5] The specific epithet (longifolia) means "long-leaved".[6]
Distribution and habitat edit
This daviesia usually grows in heath between Eneabba, the Blackwood River and Tarin Rock in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee and Swan Coastal Plain biogeographic regions of south-western Western Australia.[2][3]
Conservation status edit
Daviesia longifolia is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[3]
References edit
- ^ "Daviesia longifolia". Australian Plant Census. Retrieved 7 February 2022.
- ^ a b Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 54–57. doi:10.11646/phytotaxa.300.1.1.
- ^ a b c "Daviesia longifolia". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Daviesia longifolia". APNI. Retrieved 7 February 2022.
- ^ Lindley, John (1839). A Sketch of the Vegetation of the Swan River Colony. London: James Ridgway. p. xiv. Retrieved 7 February 2022.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 242. ISBN 9780958034180.