Bossiaea disticha

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Bossiaea disticha
Edwards' botanical register, or, Ornamental flower-garden and shrubbery .. (1829-1847) (21174700735).jpg
Illustration by Sarah Drake in The Botanical Register [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Bossiaea
Species:
B. disticha
Binomial name
Bossiaea disticha

Bossiaea disticha is a species of flowering plant in the family Fabaceae and is endemic to the far southwest of Western Australia. It is a weak, slender shrub with oblong to egg-shaped leaves and bright yellow and red flowers.

Contents

Description

Bossiaea disticha is a weak shrub that typically grows to a height of up to 1.5 m (4 ft 11 in) high, with thin weak, hairy branchlets. The leaves are arranged alternately, oblong to egg-shaped, 10–20 mm (0.39–0.79 in) long and 1.7–7 mm (0.067–0.276 in) wide on a petiole up to 1.0 mm (0.039 in) long with a narrow egg-shaped stipule up to 1.8 mm (0.071 in) long at the base. The flowers are usually arranged singly or in pairs, each flower on a pedicel 7–14 mm (0.28–0.55 in) long with egg-shaped bracts 0.7–1.8 mm (0.028–0.071 in) long attached. The five sepals are joined at the base forming a tube 2.8–3.7 mm (0.11–0.15 in) long, the two upper lobes 2.2–2.7 mm (0.087–0.106 in) long and the three lower lobes 1.5–2.8 mm (0.059–0.110 in) long. There are bracteoles 1–2 mm (0.039–0.079 in) long at the base of the sepal tube. The standard petal is bright yellow with a red base and 10.0–13.5 mm (0.39–0.53 in) long, the wings yellow with a purpish-brown base and 11.2–11.4 mm (0.44–0.45 in) long, the keel greenish-white with a red tip and 10–11.0 mm (0.39–0.43 in) long. Flowering occurs from September to November and the fruit is an oblong pod 15–22 mm (0.59–0.87 in) long. [3] [4]

Taxonomy and naming

Bossiaea disticha was first formally described in 1841 by John Lindley in Edwards's Botanical Register . Lindley described it as "A pretty little shrub, raised in the garden of the Horticultural Society from Swan River seed, presented by Capt. James Mangles R.N. and flowering in March". [5] [6] The specific epithet (disticha) means "in two rows", referring to the leaves. [7]

Distribution and habitat

This bossiaea is common in the understorey of forest, woodland and heath from near Ellen Brook in the north to Cape Leeuwin, in the Jarrah Forest and Warren biogeographic regions of far south-western Western Australia. [3] [4]

Conservation status

Bossiaea disticha is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [3]

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References

  1. ↑ Edwards, Sydenham; Lindley, John; Ridgway, James (1841). "Bossiaea disticha". Edwards's Botanical Register. 27: 55. Retrieved 21 July 2021.
  2. ↑ "Bossiaea disticha". Australian Plant Census. Retrieved 20 July 2021.
  3. 1 2 3 "Bossiaea disticha". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 Ross, James H. (2006). "A conspectus of the Western Australian Bossiaea species (Bossiaeeae: Fabaceae)". Muelleria. 23: 69–71. Retrieved 21 July 2021.
  5. ↑ "Bossiaea disticha". APNI. Retrieved 21 July 2021.
  6. ↑ Edwards, Sydenham; Lindley, John; Ridgway, James (1841). "Bossiaea disticha". Edwards's Botanical Register. 27: 55. Retrieved 21 July 2021.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 185. ISBN   9780958034180.
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