Daviesia obovata

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Paddle-leaf daviesia
Daviesia obovata leaves.jpg
Foliage of Daviesia obovata
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. obovata
Binomial name
Daviesia obovata

Daviesia obovata, commonly known as paddle-leaf daviesia, [2] is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, slender shrub with scattered egg-shaped phyllodes with the narrower end towards the base, and yellow flowers with pale green markings.

Contents


Description

Daviesia obovata is an erect, slender shrub that typically grows to a height of 0.7–1.5 m (2 ft 4 in – 4 ft 11 in) and is glabrous. Its phyllodes are scattered, paddle-shaped to egg-shaped with the narrower end towards the base, mostly 55–90 mm (2.2–3.5 in) long and 18–45 mm (0.71–1.77 in) wide. The flowers are arranged in pairs or threes in leaf axils on a peduncle 0.5–2 mm (0.020–0.079 in) long, the rachis 5–7 mm (0.20–0.28 in) long, each flower on a pedicel 3–4 mm (0.12–0.16 in) long with bracts about 4 mm (0.16 in) long. The sepals are 7–8 mm (0.28–0.31 in) long and joined at the base, the lobes more or less equal in length. The standard petal is egg-shaped with a notched tip, about 9.5–11.0 mm (0.37–0.43 in) long, 14.5–16.0 mm (0.57–0.63 in) wide, and yellow and pale green. The wings are 9.0–10.5 mm (0.35–0.41 in) long and pale yellowish-green, and the keel is 7.5–9.0 mm (0.30–0.35 in) long and pale yellowish-green. Flowering occurs in October and the fruit is a flattened triangular pod 18.5–23 mm (0.73–0.91 in) long. [3] [4]

Taxonomy

Daviesia obovata was first described in 1853 by Nikolai Turczaninow in the Bulletin de la Société Impériale des Naturalistes de Moscou. [5] [6] The specific epithet (obovata) means "inverted egg-shaped". [7]

Distribution and habitat

Paddle-leaf daviesia grows in heath with Eucalyptus marginata and is restricted to the eastern Stirling Range and the Barren Range in the Esperance Plains biogeographic region. [3] [4]

Conservation status

This daviesia is listed as "endangered" species under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened" by the Western Australian Government Department of Parks and Wildlife, [4] meaning that it is in danger of extinction. [8] A major threat to the species is dieback due to Phytophthora cinnamomi . [2]

Related Research Articles

<i>Daviesia anceps</i> Species of flowering plant

Daviesia anceps is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a dense, erect or low-lying shrub with its branchlets reduced to flattened cladodes, and yellow flowers with red markings.

<i>Daviesia cardiophylla</i> Species of flowering plant

Daviesia cardiophylla is a species of flowering plant in the family Fabaceae and is endemic to the southwest of Western Australia. It is an erect, spreading shrub with heart-shaped, sharply pointed phyllodes and yellow and red flowers.

<i>Daviesia chapmanii</i> Species of flowering plant

Daviesia chapmanii is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a dense, compact, rounded shrub with sharply-ridged branches, densely crowded, sharply-pointed phyllodes, and pale yellow flowers with deep pink markings.

<i>Daviesia crassa</i> Species of flowering plant

Daviesia crassa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a compact, dense, glabrous shrub with densely crowded, thick, club-shaped phyllodes, and uniformly yellow flowers.

<i>Daviesia crenulata</i> Species of flowering plant

Daviesia crenulata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy shrub with broadly egg-shaped phyllodes with a sharply-pointed end and wavy edges, and uniformly yellow-orange and maroon flowers.

<i>Daviesia cunderdin</i> Species of flowering plant

Daviesia cunderdin, commonly known as Cunderdin daviesia, is a species of flowering plant in the family Fabaceae and is endemic to a restricted area in the south-west of Western Australia. It is a compact, densely-branched shrub with scattered, elliptic to egg-shaped phyllodes, and uniformly red flowers.

Daviesia eurylobos is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with somewhat crowded, egg-shaped to elliptic phyllodes, and yellow and red flowers.

<i>Daviesia implexa</i> Species of flowering plant

Daviesia implexa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a mound-shaped shrub with many tangled stems, scattered linear phyllodes and yellow or apricot-coloured, reddish-brown and yellowish-green flowers.

<i>Daviesia incrassata</i> Species of flowering plant

Daviesia incrassata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, mounded to spreading shrub with more or less zigzag branchlets, scattered needle-shaped phyllodes and orange, deep red and pink flowers.

<i>Daviesia inflata</i> Species of flowering plant

Daviesia inflata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect shrub with many spreading stems, scattered needle-shaped, sharply-pointed phyllodes and orange red flowers with a dark red centre.

<i>Daviesia lancifolia</i> Species of flowering plant

Daviesia lancifolia is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a prostrate to erect, spreading shrub with egg-shaped, more or less round or linear phyllodes and yellow to orange and red flowers.

<i>Daviesia lineata</i> Species of flowering plant

Daviesia lineata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, bushy shrub with scattered needle-shaped, sharply-pointed phyllodes and yellow and reddish flowers.

<i>Daviesia localis</i> Species of flowering plant

Daviesia localis is a species of flowering plant in the family Fabaceae and is endemic to a restricted area of the south-west of Western Australia. It is an erect, spreading shrub with spine-tipped branchlets, scattered, spreading, curved, needle-shaped, sharply-pointed phyllodes and orange-yellow and red flowers with a v-shaped central mark.

<i>Daviesia longifolia</i> Species of flowering plant

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.

<i>Daviesia major</i> Species of flowering plant

Daviesia major 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, sharply-pointed, cylindrical phyllodes and orange and red flowers.

<i>Daviesia megacalyx</i> Species of flowering plant

Daviesia megacalyx is a species of flowering plant in the family Fabaceae and is endemic to a restricted part of the south-west of Western Australia. It is an erect, glabrous shrub with scattered, leathery, elliptic phyllodes and apricot-coloured and deep pink flowers.

<i>Daviesia mesophylla</i> Species of flowering plant

Daviesia mesophylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a low-lying, glabrous shrub with sharply-pointed, linear or narrowly egg-shaped phyllodes with the narrower end towards the base, and yellow to orange, red and cream-coloured flowers.

Daviesia microcarpa, commonly known as Norseman pea, is a species of flowering plant in the family Fabaceae and is endemic to two small areas of inland Western Australia. It is a sprawling shrub with tangled stems and crowded, needle-shaped, sharply-pointed phyllodes, and orange and pinkish-red flowers.

<i>Daviesia microphylla</i> Species of flowering plant

Daviesia microphylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an openly-branched, sprawling shrub with spiny branchlets, crowded, sharply-pointed, egg-shaped phyllodes, and orange, dark red and maroon flowers.

<i>Daviesia mollis</i> Species of flowering plant

Daviesia mollis is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a small shrub with softly-hairy foliage, scattered elliptic phyllodes, and yellow and reddish flowers.

References

  1. ↑ "Daviesia obovata". Australian Plant Census. Retrieved 3 March 2022.
  2. 1 2 "Approved conservation advice for Daviesis obovata (Paddle-leaf daviesia)" (PDF). Australian Government Department of Primary Industries, Water and the Environment. Retrieved 2 March 2022.
  3. 1 2 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 187–188. doi: 10.11646/phytotaxa.300.1.1 .
  4. 1 2 3 "Daviesia obovata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Daviesia obovata". APNI. Retrieved 3 March 2022.
  6. ↑ Turczaninow, Nikolai (1853). "Papilionaceae. Podalyrieae et Loteae Australasicae Non-Nullae, Hucusque non Descriptae". Bulletin de la Société Impériale des Naturalistes de Moscou. 26 (1): 261–262. Retrieved 3 March 2022.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 263. ISBN   9780958034180.
  8. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 3 March 2022.
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