Bossiaea leptacantha

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Bossiaea leptacantha
Bossiaea leptacantha.jpg
Near Madura Pass in Nuytsland Nature Reserve
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. leptacantha
Binomial name
Bossiaea leptacantha
BossiaealeptacanthaDistMap60.png
Occurrence data from AVH
Habit Bossiaea leptacantha habit.jpg
Habit

Bossiaea leptacantha is a species of flowering plant in the family Fabaceae and is endemic to southern Western Australia. It is a low, compact, spreading, many-branched shrub, the branches ending in cladodes, the leaves reduced to small scales, and with deep yellow, red and greenish yellow flowers.

Contents

Description

Bossiaea leptacantha is a low, compact, spreading, many-branched shrub that typically grows up to 50 cm (20 in) high, 1 m (3 ft 3 in) wide and is glabrous except for the youngest growth. The branches end in cladodes 1.0–1.5 mm (0.039–0.059 in) wide, the leaves reduced to dark brown scales 0.7–1.0 mm (0.028–0.039 in) long. The flowers are usually arranged singly, each flower on a pedicel up to 7.5 mm (0.30 in) long with up to thirteen overlapping bracts up to 1 mm (0.039 in) long. The five sepals are joined at the base forming a tube 3–3.5 mm (0.12–0.14 in) long, the two upper lobes 10.5–14.4 mm (0.41–0.57 in) long and the three lower lobes 1.8–3.5 mm (0.071–0.138 in) long, with egg-shaped bracteoles 0.8–1.5 mm (0.031–0.059 in) long on the pedicel. The standard petal is deep yellow with a red base and 7.7–9.4 mm (0.30–0.37 in) long, the wings deep yellow and 6.5–8.5 mm (0.26–0.33 in) long, and the keel is greenish yellow and 6.5–8.2 mm (0.26–0.32 in) long. Flowering occurs from July to December and the fruit is an oblong pod 15–24 mm (0.59–0.94 in) long. [2]

Taxonomy and naming

Bossiaea leptacantha was first formally described in 1904 by Ernst Georg Pritzel in the Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie . [3] [4] The specific epithet (leptacantha) means "thin and prickly", referring to the branchlets. [5]

Distribution and habitat

This bossiaea grows in sand on dunes and undulating plains from near Peak Charles to Madura in the Coolgardie, Hampton and Mallee biogeographic regions of southern Western Australia. [2] [6]

Conservation status

Bossiaea leptacantha is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [6]

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References

  1. "Bossiaea leptacantha". Australian Plant Census. Retrieved 5 August 2021.
  2. 1 2 Ross, James H. (1998). "A conspectus of the Western Australian Bossiaea species (Bossiaeeae: Fabaceae)". Muelleria. 23: 123–124. Retrieved 5 August 2021.
  3. "Bossiaea leptacantha". APNI. Retrieved 18 June 2021.
  4. Pritzel, Ernst G.; Engler, Adolf (1904). "Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 35 (2–3): 263. Retrieved 5 August 2021.
  5. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 238. ISBN   9780958034180.
  6. 1 2 "Bossiaea leptacantha". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.