Eremophila glutinosa

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Sticky emu bush
Eremophila glutinosa (leaves and flowers).jpg
Eremophila glutinosa leaves and flowers
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Eremophila
Species:
E. glutinosa
Binomial name
Eremophila glutinosa

Eremophila glutinosa, commonly known as sticky emu bush, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, densely foliaged shrub with branches and leaves sticky and shiny due to the presence of resin. It has hairy sepals and lilac-coloured flowers.

Contents

Description

Eremophila glutinosa is an erect shrub growing to a height of between 0.4 and 3 metres (1 and 10 ft) with branches that are densely covered with glandular hairs that are often obscured by a thick layer of resin. The leaves are mostly 8–20 mm (0.3–0.8 in) long, 0.5–1.5 mm (0.02–0.06 in) wide, densely clustered near the ends of the branches, linear in shape, channelled on the lower surface and covered with resin. [2] [3]

The flowers are borne singly in leaf axils on a sticky, hairy stalk, usually 1.5–6.5 mm (0.06–0.3 in) long. There are 5 overlapping, green, lance-shaped to egg-shaped sepals which are mostly 6–10.5 mm (0.2–0.4 in) long and hairy on both the inner and outer surfaces. The petals are 10–25 mm (0.4–1 in) long and joined at their lower end to form a tube. The tube is a shade of lilac with dark spots inside the tube and on part of the lobes. The outside of the tube is sparsely hairy, the inside of the lobes glabrous and the inside of the tube is densely woolly. The 4 stamens are fully enclosed in the tube. Flowering occurs from June to October and is followed by fruits which are dry, woody, hairy and 4–6 millimetres (0.16–0.24 in) long. [2] [3]

E. glutinosa growing near Mount Augustus Eremophila glutinosa (habit).jpg
E. glutinosa growing near Mount Augustus

Taxonomy and naming

The species was first formally described by Robert Chinnock in 1979 and the description was published in Journal of the Adelaide Botanic Garden. [4] [5] The specific epithet (glutinosa) is a Latin word meaning "sticky" or "viscous", [6] referring to the sticky leaves of this species. [2]

Distribution and habitat

Eremophila glutinosa usually grows on rocky hills, on granite outcrops or along temporary watercourses in clay or sandy soils between Laverton and Mount Augustus [3] in the Avon Wheatbelt, Gascoyne, Murchison and Yalgoo biogeographic regions. [7] [8]

Conservation status

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

Use in horticulture

This eremophila is not well known in cultivation and has generally only been grown by propagating onto Myoporum rootstock. It grows in full sun or partial shade but needs protection from frosts. [9]

Related Research Articles

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

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

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

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

Eremophila phyllopoda is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect or spreading shrub, sometimes round or flat-topped with sticky, hairy leaves and flowers ranging in colour from pink or lilac to purple.

Eremophila prolata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with a rounded top, prominently ridged, hairy branches, narrow leaves and white to deep lilac-coloured flowers.

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

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Eremophila pungens is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is an erect, sticky shrub with broad, serrated-edged leaves which end in a sharp spine and purple or violet flowers.

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

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Eremophila simulans is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with broad, serrated leaves and violet to purple flowers.

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

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

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Eremophila succinea is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, broom-shaped shrub with sticky, narrow, hooked leaves, narrow, sticky sepals and hairy, pale purple or mauve petals.

Eremophila viscimarginata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small, erect, prickly shrub with hairy stems, small leaves, greenish-pink sepals and mauve petals.

References

  1. ↑ "Eremophila glutinosa". Australian Plant Census. Retrieved 5 May 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. 377–379. 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. 138. ISBN   9780980348156.
  4. ↑ "Eremophila glutinosa". APNI. Retrieved 29 January 2016.
  5. ↑ Chinnock, Robert J. (2 April 1979). "Ten new species of Eremophila (Myoporaceae) from Central and Western Australia" (PDF). Journal of the Adelaide Botanic Garden. 1 (4): 240–242. JSTOR   23872160 . Retrieved 29 January 2016.
  6. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 370.
  7. 1 2 "Eremophila glutinosa". FloraBase . Western Australian Government Department of Parks and Wildlife.
  8. ↑ Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue . Perth: Wildflower Society of Western Australia. p. 336. ISBN   0646402439.
  9. ↑ Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. p. 106. ISBN   9781876473655.
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