Английская Википедия:Daviesia elongata

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Speciesbox

Daviesia elongata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a glabrous, spreading or sprawling shrub with narrowly egg-shaped to linear phyllodes and yellow-orange and maroon flowers.

Description

Daviesia elongata is a glabrous, spreading or sprawling shrub that typically grows to a height of Шаблон:Cvt and up to Шаблон:Cvt wide. Its phyllodes are narrowly egg-shaped with the narrower end towards the base to linear, Шаблон:Cvt long and Шаблон:Cvt wide with a prominent mid-vein. The flowers are arranged in groups of two or three in leaf axils on a peduncle Шаблон:Cvt long, the rachis Шаблон:Cvt, each flower on a pedicel Шаблон:Cvt long with triangular bracts about Шаблон:Cvt long. The sepals are Шаблон:Cvt long and joined at the base, upper two lobes joined for most of their length, the lower three about Шаблон:Cvt long and triangular. The standard petal is elliptic, Шаблон:Cvt long, Шаблон:Cvt wide and yellow or yellow-orange with a red base and a notched tip. The wings are Шаблон:Cvt long and maroon, and the keel is about Шаблон:Cvt long and maroon. Flowering occurs from September to January and the fruit is a flattened triangular pod Шаблон:Cvt long.[1][2]

Taxonomy

Daviesia elongata was first formally described in 1864 by George Bentham in Flora Australiensis.[3][4] The specific epithet (elongata) means "lengthened", referring to the phyllodes.[5]

In 1995, Michael Crisp described two subspecies in Australian Systematic Botany, but only the name of the autonym is accepted by the Australian Plant Census:

  • Daviesia elongata Benth. subsp. elongata;[6]
  • Daviesia elongata subsp. implexa Crisp.[7]

Distribution and habitat

This species of pea grows in the heathy understorey of forest near Carbunup and Busselton.[1][2]

Conservation status

Daviesia elongata subsp. elongata is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Biodiversity, Conservation and Attractions. The main threats to the species include disturbance during road maintenance, inappropriate fire regimes and weed invasion.[1][8]

References

Шаблон:Reflist

Шаблон:Taxonbar