Eremophila petrophila

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

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.

Contents

Description

Eremophila petrophila is an open, erect shrub which grows to a height of 3.2 m (10 ft) sometimes unbranched in the lower half or alternatively, with many branches sprouting from near ground level. Its branches are rough due to persistent leaf bases and are sticky, sometimes also shiny due to the presence of resin secreted by large numbers of raised, pimple-like glands. The leaves are clustered near the ends of the branches, are linear to lance-shaped, 8–23 mm (0.3–0.9 in) long, 2–3 mm (0.08–0.1 in) wide and mostly glabrous but are sticky and often shiny due to the resin secreted from many raised glands. [2] [3]

The flowers are borne singly in leaf axils on a stalk 1.5–4.5 mm (0.06–0.2 in) long which is covered with glandular hairs. There are five overlapping, sticky, green or purple-green, lance-shaped to egg-shaped, sepals which are mostly 8–10 mm (0.3–0.4 in) long. The petals are 16–22.5 mm (0.6–0.9 in) long and are joined at their lower end to form a tube. The petal tube is lilac-coloured or very faintly lilac on the outside and white inside with brown or purple spots. The petal tube and lobes are hairy on the outside, the petal lobes are glabrous on the inside, and the inside of the tube is filled with woolly hairs. The 4 stamens are fully enclosed in the petal tube. Flowering time depends on subspecies. The fruits are dry, woody, oval-shaped, 6.3–7 mm (0.25–0.28 in) long and have a hairy, papery covering. [2] [3]

Taxonomy and naming

The species was first formally described by Robert Chinnock in 2007 and the description was published in Eremophila and Allied Genera: A Monograph of the Plant Family Myoporaceae. [4] The specific epithet (petrophila) is derived from the Ancient Greek πέτρα (pétra) meaning "rock" or "stone" [5] :601 and φίλος (phílos) meaning "dear" or "beloved" [5] :498 referring to the habitat preference of this species. [2]

There are two subspecies

Distribution and habitat

Subspecies petrophila occurs on hills and rocky slopes from the Hamersley Range south to Waldburg Station [2] [3] in the Gascoyne and Pilbara biogeographic regions. [8] Subspecies densa is only known from between Pimbee and Towrana stations near Gascoyne Junction in the Carnarvon, Gascoyne and Murchison biogeographic regions [9] where it grows on low, rocky hills. [2] [3]

Conservation

This species is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife, [9] although the subspecies densa is classified as "Priority Three" [10] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [11]

Related Research Articles

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

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

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

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

Eremophila flaccida is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a low, spreading shrub with sticky, shiny foliage and large, attractive flowers. There are two subspecies, one common and relatively widespread, the other known from only a few locations.

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

Eremophila forrestii, commonly known as Wilcox bush is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a many-branched shrub with its branches, leaves and sepals densely-covered with a thick layer of greyish or yellowish hairs giving the plant a felty appearance. Its flowers are cream-coloured to pink and are spotted or streaked dark red. It occurs mostly in Western Australia but also in the far west of South Australia and the Northern Territory. Six subspecies are recognised by the Western Australian Government Department of Parks and Wildlife.

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

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

Eremophila jucunda is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small to medium-sized shrub with hairy branches and leaves, lance-shaped to egg-shaped leaves and cream-coloured, lilac or purple flowers.

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

Eremophila magnifica is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with large, clustered leaves and large, attractive lilac-coloured or purple flowers, sometimes so densely clustered that they appear like compound heads of terminal flowers.

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

Eremophila obovata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a low, compact shrub with lilac to purple flowers growing mainly in the Northern Territory and Queensland but also Western Australia, South Australia and New South Wales.

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

Eremophila paisleyi is a plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a rounded, broom-shaped shrub with white or lilac-coloured flowers which occurs in Western Australia, South Australia and the Northern Territory.

<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.

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

Eremophila platycalyx is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a shrub or small tree with its branches and leaves covered with a layer of matted hairs, although the hairs are sometimes obscured by resin. The shape of the leaves is variable, depending on subspecies, the sepals are often brightly coloured and the petals are cream-coloured, sometimes spotted on the outside. Two subspecies have been described but others have been discovered although not as yet formally described.

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

Eremophila platythamnos, commonly known as desert foxglove, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is an erect shrub with short, broad leaves and purple, mauve, blue or pink flowers.

Eremophila rostrata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with cylinder-shaped leaves, small sepals and glabrous, pink to deep red petals. There are two subspecies, both of which are critically endangered.

Eremophila shonae is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub or a low spreading shrub, depending on subspecies and has very sticky branches and leaves due to the presence of large amounts of resin. The leaves are narrow and the flowers are mauve to purple and white inside with purple spots.

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

Eremophila spectabilis, commonly known as showy poverty bush, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a dense, erect shrub with narrow, greyish leaves and blue, mauve or purple flowers.

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

Eremophila spuria is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, open shrub with narrow leaves and blue, lilac, purple or white flowers and is a common and widespread species.

<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. "Eremophila petrophila". Australian Plant Census. Retrieved 6 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. 379–381. ISBN   9781877058165.
  3. 1 2 3 4 5 6 Brown, Andrew; Buirchell, Bevan (2011). A field guide to the eremophilas of Western Australia (1st ed.). Hamilton Hill, W.A.: Simon Nevill Publications. pp. 207–208. ISBN   9780980348156.
  4. "Eremophila petrophila". APNI. Retrieved 26 February 2016.
  5. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  6. "Eremophila petrophila subsp. petrophila". APNI. Retrieved 26 February 2016.
  7. "Eremophila petrophilasubsp. densa". APNI. Retrieved 26 February 2016.
  8. "Eremophila petrophila subsp. petrophila". FloraBase . Western Australian Government Department of Parks and Wildlife.
  9. 1 2 "Eremophila petrophila subsp. densa". FloraBase . Western Australian Government Department of Parks and Wildlife.
  10. "Eremophila petrophila". FloraBase . Western Australian Government Department of Parks and Wildlife.
  11. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 9 August 2019.