Biology:Daviesia flava

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Short description: Species of flowering plant

Daviesia flava
Daviesia flava.jpg
In the Australian National Botanic Gardens
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. flava
Binomial name
Daviesia flava
Pedley[1]

Daviesia flava is a species of flowering plant in the family Fabaceae and is endemic to Queensland. It is a glabrous shrub with linear or narrowly egg-shaped phyllodes, and uniformly yellow flowers.

Description

Daviesia flava is a glabrous, compact to spreading shrub that typically grows to a height of up to 2 m (6 ft 7 in). Its leaves are reduced to linear to narrowly egg-shaped phyllodes 30–130 mm (1.2–5.1 in) long, 2–17 mm (0.079–0.669 in) wide with prominent veins on both sides. The flowers are arranged in one to several racemes of three to ten in leaf axils, the racemes on a peduncle 8–24 mm (0.31–0.94 in) long, the rachis 0.5–13 mm (0.020–0.512 in) long, each flower on a pedicel 4.5–11 mm (0.18–0.43 in) long with bracts about 1.5 mm (0.059 in) long at the base. The sepals are 3.0–3.5 mm (0.12–0.14 in) long and joined at the base, the two upper lobes joined for part of their length and the lower three triangular. The petals are uniformly yellow, the standard petal elliptic, 5.0–6.0 mm (0.20–0.24 in) long, 5–8 mm (0.20–0.31 in) wide, the wings 6–7 mm (0.24–0.28 in) long and the keel 5.0–5.5 mm (0.20–0.22 in) long. Flowering occurs from March to November and the fruit is a flattened, triangular pod 8–10 mm (0.31–0.39 in) long.[2][3]

Taxonomy and naming

Daviesia flava was first formally described in 1977 by Leslie Pedley in the journal Austrobaileya from specimens collected near the Kuranda-Mareeba road in 1962.[3][4] The specific epithet (flava) means "yellow".[5]

Distribution and habitat

This species of pea grows in open forest and woodland on hillside and rocky slopes between Laura and Townsville in far north Queensland.[2][3]

Conservation status

Daviesia flava is listed as of "least concern" under the Queensland Government Nature Conservation Act 1992.[6]

References

  1. "Daviesia flava". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/82647. 
  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): 107–109. doi:10.11646/phytotaxa.300.1.1. 
  3. 3.0 3.1 3.2 Pedley, Leslie (1977). "Notes on Leguminosae". Austrobaileya 1 (1): 35. https://www.jstor.org/stable/41738605. Retrieved 9 January 2022. 
  4. "Daviesia flava". APNI. https://id.biodiversity.org.au/instance/apni/499889. 
  5. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 200. ISBN 9780958034180. 
  6. "Species profile - Daviesia flava". Queensland Government Department of Environment and Science. https://apps.des.qld.gov.au/species-search/details/?id=15443. 

Wikidata ☰ Q15532706 entry