Eremophila mackinlayi

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Desert pride
Eremophila mackinlayi spathulata (leaves and flowers).jpg
Eremophila mackinlayi subsp. spathulata leaves and flowers
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. mackinlayi
Binomial name
Eremophila mackinlayi
Synonyms [1]

Eremophila mackinlayi, commonly known as desert pride, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a shrub with its branches and leaves covered with a thick layer of yellow to grey hairs, mostly egg-shaped leaves and deep lilac-coloured to purple flowers. It is most closely related to E. strongylophylla and E. hygrophana and sometimes occurs in the same areas as these species.

Contents

Description

Eremophila mackinlayi is sometimes a spreading shrub, other times erect, growing to a height of 0.2–1 m (0.7–3 ft). Its leaves and branches are covered with a thick layer of yellow to grey branched hairs but lack the glandular hairs present on the foliage of E. strongylphylla and the simple hairs of E. hygrophana. The leaves have a stalk about 2–5 mm (0.08–0.2 in) long and a blade that is mostly 10–30 mm (0.4–1 in) long, 7–14 mm (0.3–0.6 in) wide, egg-shaped to lance-shaped, sometimes wavy, with an obvious mid-vein on the lower surface. [2] [3]

The flowers are borne singly in leaf axils on a hairy stalk which is up to 1.5 mm (0.06 in) long and, unlike those of E. hygrophana, are densely clustered near the ends of the branches. There are 5 hairy, narrow triangular to lance-shaped sepals which are 8.5–13.5 mm (0.3–0.5 in) long. The petals are 25–35 mm (0.98–1.4 in) long and are joined at their lower end to form a tube. The petal tube is deep lilac-coloured to purple on the outside, white without spots inside. The outside of the tube and petal lobes is covered with branched hairs, the inside of the lobes is glabrous and the inside of the tube is densely woolly. The 4 stamens are fully enclosed in the petal tube. Flowering occurs from May to October and the fruits which follow are oval or bottle-shaped, with a dense covering of woolly hairs and are 7.5–10 mm (0.3–0.4 in) long. [2] [3]

E. mackinlayi subsp. spathulata growing north-east of Meekatharra Eremophila mackinlayi spathulata (habit).jpg
E. mackinlayi subsp. spathulata growing north-east of Meekatharra
E. mackinlayi subsp. spathulata flower detail Eremophila mackinlayi spathulata (flower detail).jpg
E. mackinlayi subsp. spathulata flower detail

Taxonomy and naming

Eremophila mackinlayi was first formally described in 1864 by Victorian Government Botanist Ferdinand von Mueller in Fragmenta phytographiae Australiae . [4] [5] The specific epithet (mackinlayi) honours the explorer John McKinlay. [2]

Two subspecies are currently recognised:

Distribution and habitat

Subspecies mackinlayi occurs in near-coastal areas between Shark Bay and Carnarvon in the Carnarvon and Murchison biogeographic regions. [8] [9] It grows in calcareous and sandy soils, often in mulga woodland. [2]

Subspecies spathulata occurs between Leonora, Wooleen and Mullewa in the Carnarvon, Murchison and Yalgoo biogeographic regions. [9] [10] It usually grows in red-brown loam near drainage channels in mulga woodland. [2]

Conservation status

Both subspecies are classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [11]

Use in horticulture

The felt-like leaves of this eremophila as well as its massed display of blue flowers on the end of its branches are attractive features. It can be grown from cuttings but grafting is the preferred option if the plant is to be grown in southern Australia, to help reduce fungal infection causing dieback in winter. It grows best in well-drained soil when grown on its own roots, in full sun or partial shade and in an area with good air flow. It only needs occasional watering during long droughts and is moderately frost hardy. [12]

Related Research Articles

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

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

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References

  1. 1 2 "Eremophila mackinlayi". Australian Plant Census. Retrieved 7 September 2020.
  2. 1 2 3 4 5 6 7 Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 468–470. ISBN   9781877058165.
  3. 1 2 3 4 Brown, Andrew; Buirchell, Bevan (2011). A field guide to the eremophilas of Western Australia (1st ed.). Hamilton Hill, W.A.: Simon Nevill Publications. pp. 172–173. ISBN   9780980348156.
  4. "Eremophila mackinlayi". APNI. Retrieved 13 February 2016.
  5. von Mueller, Ferdinand (1864). Fragmenta phytographiae Australiae. Vol. 4. Melbourne. p. 80. Retrieved 13 February 2016.{{cite book}}: CS1 maint: location missing publisher (link)
  6. "Eremophila mackinlayi subsp. mackinlayi". APNI. Retrieved 13 February 2016.
  7. "Eremophila mackinlayi subsp. spathulata". APNI. Retrieved 13 February 2016.
  8. "Eremophila mackinlayi subsp. mackinlayi". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  9. 1 2 Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora: a descriptive catalogue . Perth: Wildflower Society of Western Australia. p. 338. ISBN   0646402439.
  10. "Eremophila mackinlayi subsp. spathulata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. "Eremophila mackinlayi". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  12. Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. pp. 122–123. ISBN   9781876473655.