Daviesia epiphyllum

Daviesia epiphyllum, commonly known as staghorn bush,[2] is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a rigid, erect, spreading, glabrous shrub with flattened, staghorn-shaped phylloclades with sharply-pointed lobes, and yellowish-red flowers.

Staghorn bush
In the Australian National Botanic Gardens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. epiphyllum
Binomial name
Daviesia epiphyllum

Description

Daviesia epiphyllum is a rigid, erect and spreading, glabrous shrub that typically grows to a height of 0.3–1.5 m (1 ft 0 in – 4 ft 11 in). Its branches are reduced to flattened, staghorn-shaped phylloclades 5–20 mm (0.20–0.79 in) wide, the leaves reduced to oblong phyllodes 3–12 mm (0.12–0.47 in) long and 3–8 mm (0.12–0.31 in) wide with cuspidate, sharply-pointed tips. The flowers are arranged in groups of three to seven on a peduncle 1–2 mm (0.039–0.079 in) long, the rachis 2–4 mm (0.079–0.157 in) long, each flower on a pedicel 4–10 mm (0.16–0.39 in) long with many overlapping bracts about 5 mm (0.20 in) long at the base. The sepals are 9–10 mm (0.35–0.39 in) long and joined at the base, the two upper lobes joined for most of their length and the lower three triangular. The flowers are yellowish-red, the standard broadly elliptic with a deep notch, 23–25 mm (0.91–0.98 in) long and 4.5–5.5 mm (0.18–0.22 in) wide, the wings about 24–26 mm (0.94–1.02 in) long, and the keel about 23–29 mm (0.91–1.14 in) long. Flowering occurs from January to May and the fruit is a leathery, triangular pod 18–21 mm (0.71–0.83 in) long.[2][3]

Taxonomy and naming

Daviesia epiphyllum was first formally described in 1855 by Carl Meissner in Botanische Zeitung from specimens collected by James Drummond.[4] The specific epithet (epiphyllum) means "upon a leaf", referring to the flowers growing from the phylloclades.[2]

Distribution and habitat

Staghorn bush grows on sandplains in heathland between Bullsbrook, Eneabba and Moora in the Avon Wheatbelt, Geraldton Sandplains and Swan Coastal Plain biogeographic regions of south-western Western Australia.[3][2]

Conservation status

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

References

  1. "Daviesia epiphyllum". Australian Plant Census. Retrieved 23 December 2021.
  2. Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 190–192. doi:10.11646/phytotaxa.300.1.1.
  3. "Daviesia epiphyllum". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Daviesia epiphyllum". APNI. Retrieved 23 December 2021.
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