Eremophila gibsonii

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Eremophila gibsonii
Eremophila gibsonii.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Eremophila
Species:
E. gibsonii
Binomial name
Eremophila gibsonii
Synonyms [1]
  • Bondtia gibsonii Kuntze orth. var.
  • Bontia gibsonii(F.Muell.) Kuntze
  • Eremophila gibsoniF.Muell. orth. var.
  • Pholidia gibsoni Wettst. orth. var.
  • Pholidia gibsonii(F.Muell.) Wettst.
Eremophila gibsonii white form Eremophila gibsonii white form.jpg
Eremophila gibsonii white form

Eremophila gibsonii is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a sticky, glabrous, rounded shrub with narrow leaves and white to lilac-coloured flowers and which occurs in Western Australia, South Australia and the Northern Territory.

Contents

Description

Eremophila gibsonii is an erect, rounded shrub usually growing to a height of between 1 and 2.5 m (3 and 8 ft) and which is glabrous, sticky and shiny due to the presence of resin. The leaves are arranged alternately and scattered along the branches, linear in shape, mostly 22.5–43 mm (0.9–2 in) long, 0.8–2 mm (0.03–0.08 in) wide, have a hooked end, a rough surface and usually pointed teeth on the margins. [2] [3] [4]

The flowers are borne singly or in groups of up to 3 in leaf axils on a stalk 5–15 mm (0.2–0.6 in) long. There are 5 overlapping shiny, sticky, hairy green sepals which differ from each other in size and shape, varying from egg-shaped to lance shaped, mostly 5.5–11.5 mm (0.2–0.5 in) long, but enlarging after flowering. The petals are 19–29 mm (0.7–1 in) long and are joined at their lower end to form a tube. The petal tube is white to pale lilac-coloured and covered on the outside with mostly glandular hairs. The inside surface of the petal lobes is glabrous but the inside of the tube is densely filled with long, soft hairs. The 4 stamens are fully enclosed in the petal tube. Flowering occurs from August to October and is followed by fruits which are woody with a hairy, papery covering, oval shaped and 5–6.5 mm (0.2–0.3 in) long. [2] [3] [4]

Taxonomy and naming

The species was first formally described in 1874 by Ferdinand von Mueller and the description was published in Fragmenta phytographiae Australiae . [5] [6] The specific epithet (gibsonii) honours Alfred Gibson who died on the Ernest Giles expedition in 1874 [2] and after whom the Gibson Desert is named. [7]

Distribution and habitat

In Western Australia, Eremophila gibsonii grows in the western part of the state in the Central Ranges, Great Victoria Desert and Murchison biogeographic regions. [8] [9] In South Australia it is found in the North-Western, Nullarbor and Gairdner-Torrens botanical regions. [4] It also grows in the far south-western corner of the Northern Territory. It is a common shrub found on sand dunes in central Australia.

Conservation

Eremophila gibsonii is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [8]

Use in horticulture

This eremophila has wispy foliage and delicate white to pale blue flowers. It can be propagated from cuttings but in this case needs to be grown in deep sand. The grafted form performs well in a range of soils but requires full sun. Mature specimens are drought and frost tolerant. [10]

Related Research Articles

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<i>Eremophila hughesii</i> Species of plant endemic to Australia

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<i>Eremophila densifolia</i> Species of flowering plant

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<i>Eremophila drummondii</i> Species of flowering plant

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<i>Eremophila exilifolia</i> Species of flowering plant

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<i>Eremophila psilocalyx</i> Species of flowering plant

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<i>Eremophila rotundifolia</i> Species of plant endemic to Western Australia

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<i>Eremophila willsii</i> Species of plant

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References

  1. 1 2 "Eremophila gibsonii". Australian Plant Census. Retrieved 10 September 2020.
  2. 1 2 3 Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 305–307. ISBN   9781877058165.
  3. 1 2 Brown, Andrew; Buirchell, Bevan (2011). A field guide to the eremophilas of Western Australia (1st ed.). Hamilton Hill, W.A.: Simon Nevill Publications. p. 114. ISBN   9780980348156.
  4. 1 2 3 "Eremophila gibsonii". State Herbarium of South Australia:eflora. Retrieved 27 January 2016.
  5. "Eremophila gibsonii". APNI. Retrieved 27 January 2016.
  6. von Mueller, Ferdinand (1875). Fragmenta phytographiae Australiae. Vol. 8. Melbourne: Victorian Government Printer. pp. 227–228. Retrieved 27 January 2016.
  7. Giles, Ernest (1889). Australia twice traversed: the romance of exploration, being a narrative compiled from the journals of five exploring expeditions into and through central South Australia and Western Australia from 1872 to 1876. Vol. 2. London: Sampson Low, Marston, Searle & Rivington. ISBN   0-86824-015-X. Archived from the original on 22 March 2012. Retrieved 12 May 2012.
  8. 1 2 "Eremophila gibsonii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  9. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue . Perth: Wildflower Society of Western Australia. p. 336. ISBN   0646402439.
  10. Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. pp. 100–101. ISBN   9781876473655.