Bossiaea spinosa

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Bossiaea spinosa
Status DECF P3.svg
Priority Three — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Genus: Bossiaea
Species:
B. spinosa
Binomial name
Bossiaea spinosa
BossiaeaspinosaDistMap74.png
Occurrence data from AVH
Synonyms [1]

Bossiaea spinosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a low, dense prostrate or rounded, twiggy shrub with egg-shaped to elliptic leaves and deep yellow to orange and pinkish-red, pea-like flowers.

Contents

Description

Bossiaea spinosa is a dense, prostrate or rounded, twiggy shrub that typically grows to a height of 15–50 cm (5.9–19.7 in) with its young branches whitish and side branches often ending with a sharp point. The leaves are egg-shaped or elliptic, 2.3–6.0 mm (0.091–0.236 in) long and 1.5–3.0 mm (0.059–0.118 in) wide on a petiole 0.5–2.0 mm (0.020–0.079 in) long with narrow egg-shaped stipules 1.2–2.6 mm (0.047–0.102 in) long at the base. The flowers are arranged singly, each flower on a pedicel up to 3.5 mm (0.14 in) long, with egg-shaped or elliptic bracts 1.5–2.9 mm (0.059–0.114 in) long at the base. There are egg-shaped bracteoles 1.8–3.5 mm (0.071–0.138 in) long on the pedicels. The five sepals are green with a pink to purplish tinge and joined at the base, forming a tube 1.6–3.0 mm (0.063–0.118 in) long, the two upper lobes 7.0–9.5 mm (0.28–0.37 in) long and the lower lobes 5.0–6.5 mm (0.20–0.26 in) long. The standard petal is deep yellow to orange with a pinkish-red and yellow base, 8.7–10.2 mm (0.34–0.40 in) long and 10.3–12.5 mm (0.41–0.49 in) wide, the wings are 7.5–9.0 mm (0.30–0.35 in) long, and the keel dark red and 7.4–8.8 mm (0.29–0.35 in) long. Flowering occurs from August to October and the fruit is a flattened pod 8–16 mm (0.31–0.63 in) long. [2] [3]

Taxonomy and naming

This species was first formally described in 1853 by Nikolai Turczaninow who gave it the name Platylobium spinosum in the Bulletin de la Société impériale des naturalistes de Moscou from specimens collected by James Drummond. [4] [5] In 1923, Karel Domin changed the name to Bossiaea spinosa. [6] The specific epithet (spinosa) means "spiny". [7]

Distribution and habitat

This species of pea grows in mallee and heathland between Lake Grace, Ongerup and Ravensthorpe in the Avon Wheatbelt, Esperance Plains and Mallee biogeographic regions of south-western Western Australia. [2] [3]

Conservation status

Bossiaea spinosa is classified as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [2] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [8]

Related Research Articles

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<i>Bossiaea concolor</i> Species of legume

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Bossiaea flexuosa is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a compact shrub with slightly flattened, zigzag branches, notched, more or less leafless cladodes, and golden yellow and red or pinkish flowers.

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Bossiaea preissii is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a compact, glabrous shrub with egg-shaped leaves with the narrower end towards the base, and yellow, red, orange or apricot-coloured flowers.

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<i>Bossiaea scortechinii</i> Species of legume

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Bossiaea simulata is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a compact shrub with sharply-pointed cladodes and yellow, pea-like flowers sometimes with red markings.

Bossiaea smithiorum is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a slender shrub with oblong to cylindrical leaves and orange-yellow and red or purple, pea-like flowers.

References

  1. 1 2 "Bossiaea spinosa". Australian Plant Census. Retrieved 19 September 2021.
  2. 1 2 3 "Bossiaea spinosa". FloraBase . Western Australian Government Department of Parks and Wildlife.
  3. 1 2 Ross, James H. (2006). "A conspectus of the Western Australian Bossiaea species (Bossiaeeae: Fabaceae). Muelleria 23:". Muelleria. 11: 60–62. Retrieved 19 September 2021.
  4. ↑ "Platylobium spinosum". APNI. Retrieved 19 September 2021.
  5. ↑ Turcaaninow, Nikolai (1853). "Papilionaceae. Podalyrieae et Loteae Australasicae Non-Nullae, Hucusque non Descriptae". Bulletin de la Société impériale des naturalistes de Moscou: 284. Retrieved 19 September 2021.
  6. ↑ "Bossiaea spinosa". APNI. Retrieved 19 September 2021.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 311. ISBN   9780958034180.
  8. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 20 September 2021.
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