Eremophila praecox

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Eremophila praecox
Status DECF P1.svg
Priority One — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Eremophila
Species:
E. praecox
Binomial name
Eremophila praecox

Eremophila praecox is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a small, broom-like shrub with small leaves and purple and white flowers.

Flowering plant clade of flowering plants (in APG I-III)

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 64 orders, 416 families, approximately 13,164 known genera and c. 369,000 known species. Like gymnosperms, angiosperms are seed-producing plants. However, they are distinguished from gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure; in other words, a fruiting plant. The term comes from the Greek words angeion and sperma ("seed").

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Scrophulariaceae family of plants

The Scrophulariaceae is a family of flowering plants, commonly known as the figwort family. The plants are annual and perennial herbs, as well as one genus of shrubs. Flowers have bilateral (zygomorphic) or rarely radial (actinomorphic) symmetry. Members of the Scrophulariaceae have a cosmopolitan distribution, with the majority found in temperate areas, including tropical mountains. The family name is based on the name of the included genus Scrophularia L.

Contents

Description

Eremophila praecox is a broom-shaped shrub which grows to a height of between 0.3 and 1.5 m (1 and 5 ft). The branches have a covering of branched hairs, especially near the tips and are also slightly sticky near the ends due to a covering of resin. The leaves are mostly arranged in opposite pairs and are linear in shape to almost cylindrical, mostly 5–11 mm (0.2–0.4 in) long, about 1 mm (0.04 in) wide, sparsely hairy and sticky when young but become glabrous as they mature. [2] [3]

Resin solid or highly viscous substance of plant or synthetic origin

In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on naturally-occurring resins.

The flowers are borne singly, sometimes in pairs in leaf axils on hairy stalks 2–5 mm (0.08–0.2 in) long. There are 5 green to purplish-black, egg-shaped to narrow lance-shaped, hairy sepals which are 1.8–3.5 mm (0.07–0.1 in) long. The petals are 9–14 mm (0.4–0.6 in) long and are joined at their lower end to form a tube. The petal tube is purple, tinged white on the outside, while the inside of the tube and lower part of the lobes are white, spotted purple. There are a few hairs on the outside of the petal tube but the inside surface of the petal lobes is glabrous while the tube is filled with long, soft hairs. The 4 stamens extend slightly beyond the end of the petal tube, including in the bud. Flowering occurs from October to December and is followed by fruits which are dry, woody, cone-shaped to oval-shaped with a pointed end and about 3.5–5 mm (0.1–0.2 in) long and hairy. [2] [3]

Sepal part of a calyx

A sepal is a part of the flower of angiosperms. Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. The term sepalum was coined by Noël Martin Joseph de Necker in 1790, and derived from the Greek σκεπη (skepi), a covering.

Petal Part of most types of flower

Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. Together, all of the petals of a flower are called a corolla. Petals are usually accompanied by another set of special leaves called sepals, that collectively form the calyx and lie just beneath the corolla. The calyx and the corolla together make up the perianth. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term tepal is appropriate include genera such as Aloe and Tulipa. Conversely, genera such as Rosa and Phaseolus have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly coloured tepals. Since they include Liliales, an alternative name is lilioid monocots.

Taxonomy and naming

This 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. [1] The specific epithet (praecox) is a Latin word meaning "too early ripe", "premature" or "precocious", [4] referring to the anthers which protrude from the flower buds. [2]

Robert James "Bob" Chinnock is a New Zealand-born Australian botanist who worked at the State Herbarium of South Australia as a senior biologist. He retired in 2008 but still works as an honorary research associate.

Botanical name scientific name for a plant (or alga or fungus) (ICNafp)

A botanical name is a formal scientific name conforming to the International Code of Nomenclature for algae, fungi, and plants (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the International Code of Nomenclature for Cultivated Plants (ICNCP). The code of nomenclature covers "all organisms traditionally treated as algae, fungi, or plants, whether fossil or non-fossil, including blue-green algae (Cyanobacteria), chytrids, oomycetes, slime moulds and photosynthetic protists with their taxonomically related non-photosynthetic groups ."

Latin Indo-European language of the Italic family

Latin is a classical language belonging to the Italic branch of the Indo-European languages. The Latin alphabet is derived from the Etruscan and Greek alphabets and ultimately from the Phoenician alphabet.

Distribution and habitat

Eremophila praecox occurs near Widgemooltha, Coolgardie and Kalgoorlie [2] [3] in the Coolgardie biogeographic regions of Western Australia [5] and as scattered individuals in the western part of the Eyre Peninsula in South Australia. It grows in red-brown sandy loam with other eremophila species. [2] [3]

Widgiemooltha, Western Australia Town in Western Australia

Widgiemooltha is an abandoned town in Western Australia 631 kilometres (392 mi) east of Perth between Kambalda and Norseman in the Goldfields-Esperance region of Western Australia. It is found on the southern shoreline of Lake Lefroy.

Coolgardie, Western Australia Town in Western Australia

Coolgardie is a small town in Western Australia, 558 kilometres (347 mi) east of the state capital, Perth. It has a population of approximately 850 people.

Kalgoorlie City in Western Australia

Kalgoorlie-Boulder, known colloquially as just Kalgoorlie, is a city in the Goldfields-Esperance region of Western Australia, located 595 km (370 mi) east-northeast of Perth at the end of the Great Eastern Highway. The city was founded in 1889 by the amalgamation of the towns of Kalgoorlie and Boulder, which developed in 1893 during the Coolgardie gold rush, on Western Australia's "Golden Mile". It is also the ultimate destination of the Goldfields Water Supply Scheme and the Golden Pipeline Heritage Trail.

Conservation

E. praecox is classified as "Priority One" by the Western Australian Government Department of Parks and Wildlife, [5] meaning that it is known from only one or a few locations which are potentially at risk. [6]

The Declared Rare and Priority Flora List is the system by which Western Australia's conservation flora are given a priority. Developed by the Government of Western Australia's Department of Environment and Conservation, it is used extensively within the department, including the Western Australian Herbarium. The herbarium's journal, Nuytsia, which has published over a quarter of the state's conservation taxa, requires a conservation status to be included in all publications of new Western Australian taxa that appear to be rare or endangered.

Department of Parks and Wildlife (Western Australia) department of the Government of Western Australia

The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the Conservation and Land Management Act 1984 and implementing the state's conservation and environment legislation and regulations. The minister responsible for the department was the Minister for the Environment.

Use in horticulture

This eremophila is a dainty shrub with delicate blue to purple flowers. It can be propagated from cuttings or by grafting onto Myoporum rootstock and grown in a wide range of soil types, including clay. A hardy shrub, it is both frost and drought tolerant, requiring only the occasional watering during a long drought. [7]

Related Research Articles

<i>Eremophila complanata</i> species of plant

Eremophila complanata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to a small area in the south west of Western Australia. It is an erect shrub with narrow, flattened leaves and hairy pink flowers which are also distinctly flattened.

Eremophila falcata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a widely distributed shrub with distinctive curved leaves and white, lilac-coloured or pink flowers.

<i>Eremophila flabellata</i> species of plant

Eremophila flabellata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small shrub with serrated leaves, broad serrated sepals and pink, purple or mauve flowers.

<i>Eremophila labrosa</i> species of plant

Eremophila labrosa is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a shrub with many hairy branches arising from near ground level, narrow, hooked leaves and mauve and blue flowers.

<i>Eremophila lanceolata</i> species of plant

Eremophila lanceolata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a low, spreading shrub with foliage which is shiny when young, angular branches and lilac to purple flowers and which grows in the north-west of Western Australia.

Eremophila metallicorum, commonly known as miners poverty bush, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small shrub with narrow leaves and lilac-coloured flowers on an S-shaped stalk.

Eremophila oblonga is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small, domed-shaped shrub with small, fleshy leaves and purple or mauve flowers growing near Balladonia.

Eremophila pallida is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a small, spreading shrub with hairy stems, leaves with a few serrations and reddish purple to violet flowers.

Eremophila papillata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect, compact shrub with sticky, narrow leaves and mauve, blue or purple, rarely white flowers.

Eremophila perglandulosa is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a low, spreading shrub which has small leaves with many glandular hairs and mauve or purple flowers.

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 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 pinnatifida, commonly known as Dalwallinu eremophila is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a spreading, rounded shrub with aromatic, deeply divided leaves and pale purple flowers which are white with purple spots inside. It is a rare plant, known only from a few areas near Perth.

<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.

<i>Eremophila rugosa</i> species of plant

Eremophila rugosa is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with sticky, shiny leaves and pink, purple or mauve flowers.

Eremophila setacea is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect shrub with narrow, glabrous leaves, hairy sepals and light blue to purple petals.

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.

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. 1 2 "Eremophila praecox". APNI. Retrieved 1 March 2016.
  2. 1 2 3 4 5 Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 242–244. 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. p. 224. ISBN   9780980348156.
  4. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 134.
  5. 1 2 "Eremophila praecox". FloraBase . Western Australian Government Department of Parks and Wildlife.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 1 March 2016.
  7. ↑ Boschen, Norma; Goods, Maree; Wait, Russell (2008). Australia's eremophilas : changing gardens for a changing climate. Melbourne: Bloomings Books. p. 148. ISBN   9781876473655.
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