Eremophila ternifolia

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Wongan eremophila
Eremophila ternifolia.jpg
Status DECF R.svg
Declared rare  (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Eremophila
Species:
E. ternifolia
Binomial name
Eremophila ternifolia

Eremophila ternifolia, commonly known as Wongan eremophila [2] is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a low, many-branched, shrub with short, pointed leaves and small lilac-coloured or mauve flowers.

Contents

Description

Eremophila ternifolia is a spreading, aromatic, many-branched shrub which grows to a height of between 30 and 50 cm (10 and 20 in). Its branches are hairy with both simple and shorter glandular hairs. The leaves are arranged in whorls of three, clustered and overlapping each other near the ends of the branches. They are elliptic to lance-shaped, 6–11 mm (0.2–0.4 in) long, 2.5–4.0 mm (0.1–0.2 in) wide, glabrous, light green in colour but often reddish-brown on the lower side. [2] [3]

The flowers are borne singly in leaf axils and lack a stalk. There are 4 or 5 green to reddish-brown, linear to narrow triangular, hairy sepals which are 3–4.6 mm (0.1–0.2 in) long. The petals are 8–10 mm (0.3–0.4 in) long and are joined at their lower end to form a tube. The petal tube is lilac-coloured or mauve on the outside and white with purple spots inside. The outer surface of the tube and lobes is hairy but the inner surface of the petal lobes is glabrous and the inside of the tube is filled with long, soft hairs. The lower petal lobe is also hairy. The 4 stamens are fully enclosed in the petal tube although the upper pair are almost the same length as the tube. Flowering occurs from October to November and is followed by fruits which are dry, woody, oval-shaped with a pointed end and about 2–3 mm (0.08–0.1 in) long with a hairy covering. [2] [3]

Taxonomy and naming

This species was first formally described by Robert Chinnock in 1982 and the description was published in Nuytsia. [4] The specific epithet (ternifolia) is derived from the Latin words terni meaning "in three's" [5] : 798  and folia meaning "leaves", [5] : 466  referring to the arrangement of the leaves. [3]

Distribution and habitat

This eremophila is restricted to the Wongan Hills [3] in the Avon Wheatbelt biogeographic region where it grows in rocky situations. [6]

Conservation

Eremophila ternifolia is classified as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). [6] It is listed as "Endangered" under Commonwealth legislation. Surveys between 1999 and 2001 recorded the total population as 1381 plants. [7]

Use in horticulture

In cultivation, this small shrub has a dense, circular shape with a flat top and it would be an ornamental feature in a small garden. It is long-lived in gardens, some specimens are over 25 years old, and it has attractive lilac-coloured flowers among leaves which sometimes have a reddish-brown tinge. Propagation is usually from cuttings and the shrub grows well in most soil types in a sunny or partly shaded position, is drought tolerant and very frost hardy. [8]

Related Research Articles

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

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

Eremophila recurva is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a shrub with hairy grey leaves, large grey sepals and blue, mauve or lilac flowers.

Eremophila revoluta is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a low, dense shrub with small, hairy leaves, very hairy sepals and mauve or purple petals.

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

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

Eremophila rigens is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with long, stiff, glabrous leaves and pale lilac-coloured to white flowers.

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

Eremophila rigida is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, rigid shrub with thick, hairy, rigid leaves and pale yellowish-cream flowers.

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

Eremophila sargentii is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a shrub with sticky, shiny foliage, small leaves and mauve or blue flowers.

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 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.

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

Eremophila warnesii is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, compact shrub with furry leaves, hairy sepals and blue to mauve petals. It is a little-known species, named after the founder of the Eremophila Study Group.

References

  1. ↑ "Eremophila ternifolia". Australian Plant Census. Retrieved 30 August 2020.
  2. 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. 274. ISBN   9780980348156.
  3. 1 2 3 4 Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 252–254. ISBN   9781877058165.
  4. ↑ "Eremophila ternifolia". APNI. Retrieved 22 March 2016.
  5. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  6. 1 2 "Eremophila ternifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  7. ↑ "Approved Conservation Advice for Eremophila ternifolia (Wongan Eremophila)" (PDF). Australian Government, Department of the Environment. Retrieved 22 March 2016.
  8. ↑ Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. pp. 224–225. ISBN   9781876473655.
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