Eremophila elderi

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Eremophila elderi
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Eremophila
Species:
E. elderi
Binomial name
Eremophila elderi
Synonyms [1]

Eremophila elderi, commonly known as aromatic emu bush, is a flowering plant in the figwort family, Scrophulariaceae. It is endemic to central Australia where it grows near the border between Western Australia, South Australia and the Northern Territory. It is an erect, aromatic shrub with sticky leaves and branches and usually pale coloured to white flowers. Its specific epithet (elderi) honours an early Australian businessman, Thomas Elder.

Contents

Description

Eremophila elderi is a shrub which grows to a height between 0.5 and 1.5 m (2 and 5 ft) with shiny, sticky leaves due to the presence of a resin which has a characteristic odour. Its branches are rough from the remains of winged leaf bases after the leaves have fallen. The leaves are arranged alternately, often clustered near the ends of the branches, and are mostly 29–53 mm (1–2 in) long, 8–25 mm (0.3–1 in) wide, usually elliptic to lance-shaped with wing-like extensions at their lower ends. The leaf margins are sometimes more or less serrated and the surface of the leaves is sometimes glabrous, other times covered with many glandular hairs. [2] [3] [4]

The flowers are borne in groups of two to five in leaf axils on hairy stalks, usually 10–21 mm (0.4–0.8 in) long. There are 5 overlapping, sticky, lance-shaped to egg-shaped sepals which are different sizes but mostly 10–21 mm (0.4–0.8 in) long. The sepals are green to reddish-brown and are covered with glandular hairs. The petals are 18–28 mm (0.71–1.1 in) long and joined at their lower end to form a tube. The petal tube is pale to very pale lilac, sometimes a darker shade of lilac with distinct red to purplish bands inside the tube. The tube is covered with glandular hairs on the outside but the petal lobes are glabrous on the inside. The inside of the tube is filled with woolly hairs. The 4 stamens are fully enclosed in the tube. Flowering occurs from May to October and is followed by fruits which are a narrow oval shape, partly hairy and yellow-brown to silvery in colour. [2] [3] [4]

Taxonomy and naming

Eremophila elderi was first formally described in 1874 by Ferdinand von Mueller in Fragmenta phytographiae Australiae . [5] [6] The specific epithet (elderi) honours Thomas Elder who funded the Giles expedition during which the type specimen of this species was collected. [2] [3]

Distribution and habitat

Aromatic emubush occurs in the Rawlinson Range in Western Australia, in the Central Ranges biogeographic region. [7] It is widespread in the south-west of the Northern Territory and the north-west of South Australia where it is common on rocky slopes [4] and dry creek beds. [7]

Conservation status

Eremophila elderi is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [7]

Uses

Indigenous use

The leaves of this emu bush were traditionally used by Alyawarre people for medicinal purposes and for bedding. [8]

Horticulture

This eremophila is an ideal container plant or for use as a feature plant in warm inland areas. It is usually propagated by grafting on Myoporum rootstock and grows best in well-drained soil in a sunny situation. It will not tolerate humidity or frosts but only needs occasional watering in summer. [9]

Related Research Articles

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

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

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

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

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

Eremophila christophori, commonly known as dolomite fuchsia bush, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to the southern part of the Northern Territory in Australia. It is an erect shrub with bright green leaves and white, pink or lilac flowers.

<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 gibsonii</i> Species of plant

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

Eremophila gilesii, commonly known Charleville turkey bush, green turkey bush, desert fuchsia and Giles emu bush is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is usually a low, spreading shrub with pinkish-lilac to purple flowers and is widespread in the Northern Territory and all mainland states except Victoria. It is considered a difficult agricultural weed in some parts of Queensland but is often used as a bush medicine by Aboriginal people.

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

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Eremophila petrophila is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a tall, erect, open shrub with rough branches, narrow, sticky leaves and pale lilac-coloured flowers.

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

Eremophila psilocalyx is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with a broom-like shape, narrow, hooked leaves and white, pink, blue or purple flowers. It is common in the mallee country around Esperance. It was sometimes incorrectly known as Eremophila pachyphylla.

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

Eremophila rotundifolia is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a shrub with many tangled branches with its leaves and branches covered with a layer of silvery-grey hairs. Its flowers range in colour from pale to deep lilac. It is common in South Australia and there is also a single record from the Northern Territory.

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

Eremophila willsii is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is an erect shrub with bright green, often serrated leaves and pinkish to deep pinkish-purple petals. It is mainly found in Western Australia, the Northern Territory and South Australia in deep sand.

References

  1. 1 2 "Eremophila elderi". Australian Plant Census. Retrieved 24 April 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. 350–352. ISBN   9781877058165.
  3. 1 2 3 Brown, Andrew; Buirchell, Bevan (2011). A field guide to the eremophilas of Western Australia (1st ed.). Hamilton Hill, W.A.: Simon Nevill Publications. p. 92. ISBN   9780980348156.
  4. 1 2 3 "Eremophila elderi". State Herbarium of Soputh Australia: eflora. Retrieved 11 January 2016.
  5. ↑ "Eremophila elderi". APNI. Retrieved 11 January 2016.
  6. ↑ von Mueller, Ferdinand (1874). Fragmenta phytographiae Australiae (Volume 8). Melbourne. pp. 228–229. Retrieved 11 January 2016.
  7. 1 2 3 "Eremophila elderi". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  8. ↑ Richmond, Guy S. (1993). "A review of the use of Eremophila (Myoporaceae) by Australian Aborigines" (PDF). Journal of the Adelaide Botanic Garden. 15 (2): 101–107. Retrieved 13 April 2016.
  9. ↑ Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. p. 89. ISBN   9781876473655.
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