| 词条 | Eremophila praecox |
| 释义 |
|status = P1 |status_system = DECF |genus = Eremophila (plant) |species = praecox |authority = Chinnock[1] }} 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. DescriptionEremophila praecox is a broom-shaped shrub which grows to a height of between {{convert|0.3 and 1.5|m|ft|sigfig=1|abbr=on}}. 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 {{convert|5-11|mm|in|sigfig=1|abbr=on}} long, about {{convert|1|mm|in|sigfig=1|abbr=on}} wide, sparsely hairy and sticky when young but become glabrous as they mature.[1][2]The flowers are borne singly, sometimes in pairs in leaf axils on hairy stalks {{convert|2-5|mm|in|sigfig=1|abbr=on}} long. There are 5 green to purplish-black, egg-shaped to narrow lance-shaped, hairy sepals which are {{convert|1.8-3.5|mm|in|sigfig=1|abbr=on}} long. The petals are {{convert|9-14|mm|in|sigfig=1|abbr=on}} 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 {{convert|3.5-5|mm|in|sigfig=1|abbr=on}} long and hairy.[1][2] Taxonomy and namingThis 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.[3] 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.[1] Distribution and habitatEremophila praecox occurs near Widgemooltha, Coolgardie and Kalgoorlie[1][2] 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.[1][2]ConservationE. 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]Use in horticultureThis 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] References1. ^1 2 3 4 {{cite book|last1=Chinnock|first1=R.J. (Bob)|title=Eremophila and allied genera : a monograph of the plant family Myoporaceae|date=2007|publisher=Rosenberg|location=Dural, NSW|isbn=9781877058165|pages=242–244|edition=1st}} {{Taxonbar|from=Q15593378}}2. ^1 2 3 {{cite book|last1=Brown|first1=Andrew|last2=Buirchell|first2=Bevan|title=A field guide to the eremophilas of Western Australia|date=2011|publisher=Simon Nevill Publications|location=Hamilton Hill, W.A.|isbn=9780980348156|page=224|edition=1st}} 3. ^1 {{cite web|title=Eremophila praecox|url= http://id.biodiversity.org.au/name/apni/207401|publisher=APNI|accessdate=1 March 2016}} 4. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=134}} 5. ^1 {{FloraBase|name=Eremophila praecox |id=14516}} 6. ^{{cite web|title=Conservation codes for Western Australian Flora and Fauna|url=https://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation%20code%20definitions.pdf|publisher=Government of Western Australia Department of Parks and Wildlife|accessdate=1 March 2016}} 7. ^{{cite book|last1=Boschen|first1=Norma|last2=Goods|first2=Maree|last3=Wait|first3=Russell|title=Australia's eremophilas : changing gardens for a changing climate|date=2008|publisher=Bloomings Books|location=Melbourne|isbn=9781876473655|page=148}} 6 : Eudicots of Western Australia|Eremophila (plant)|Flora of South Australia|Flora of Western Australia|Endemic flora of Western Australia|Plants described in 2007 |
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