Daviesia oxylobium

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Daviesia oxylobium
Daviesia oxylobium.jpg
Near Quairading
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
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. oxylobium
Binomial name
Daviesia oxylobium

Daviesia oxylobium 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 sharply-pointed, cylindrical phyllodes, and yellow and pinkish-red flowers.

Contents

Description

Daviesia oxylobium is an erect, glaucous, bushy shrub that typically grows to a height of up to about 1 m (3 ft 3 in). Its phyllodes are crowded, erect and club-shaped to cylindrical, 20–70 mm (0.79–2.76 in) long and 1.0–1.5 mm (0.039–0.059 in) wide with a sharply pointed tip. The flowers are arranged in leaf axils in up to three groups of three to five, each group on a peduncle 1.0–1.5 mm (0.039–0.059 in) long, the rachis 1–4 mm (0.039–0.157 in) long, each flower on a pedicel 1–3 mm (0.039–0.118 in) long with triangular bracts at the base. The sepals are 2.5–3.0 mm (0.098–0.118 in) long and joined for most of their length apart from five small teeth. The standard petal is broadly egg-shaped with a notched centre, 4.0–5.5 mm (0.16–0.22 in) long and 5.5–6.0 mm (0.22–0.24 in) wide, and yellow with a deep pinkish-red base. The wings are about 5 mm (0.20 in) long and pinkish-red, the keel 4.0–4.5 mm (0.16–0.18 in) long and dark red. Flowering occurs in July and August and the fruit is an inflated, triangular pod 14–18 mm (0.55–0.71 in) long. [2] [3]

Taxonomy and naming

Daviesia oxylobium was first formally described in 1995 by Michael Crisp in Australian Systematic Botany from specimens he collected near Quairading in 1980. [4] The specific epithet (oxylobium) means "a sharp pod". [5]

Distribution and habitat

This daviesia grows in kwongan or woodland between Quairading, Corrigin, Bruce Rock and Yorkrakine in the Avon Wheatbelt and Jarrah Forest biogeographic regions of south-western Western Australia. [2] [3]

Conservation status

Daviesia oxylobium is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [3] meaning that it is rare or near threatened. [6]

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

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

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

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

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

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

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Daviesia newbeyi is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy, broom-like, more or less glabrous shrub with ridged stems, narrowly oblong to linear phyllodes, and orange flowers with dark red markings.

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

Daviesia oxyclada is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a densely-branched, glabrous shrub with spiny stems, vertically compressed, triangular phyllodes with the narrower end towards the base, and yellow or orange flowers with red markings.

References

  1. ↑ "Daviesia oxylobium". Australian Plant Census. Retrieved 12 March 2022.
  2. 1 2 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 149–150. doi: 10.11646/phytotaxa.300.1.1 .
  3. 1 2 3 "Daviesia oxylobium". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Daviesia oxylobium". APNI. Retrieved 12 March 2022.
  5. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 268. ISBN   9780958034180.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 12 March 2022.
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